{"id":"https://openalex.org/W7212373975","doi":"https://doi.org/10.58334/vrtc.jtst.vol.015.918","title":"Nghi\u00ean c\u1ee9u t\u1ed5ng h\u1ee3p k\u1ebdm undecylenat v\u00e0 \u0111\u00e1nh gi\u00e1 hi\u1ec7u qu\u1ea3 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i sau ph\u1ea3n \u1ee9ng b\u1eb1ng v\u1eadt li\u1ec7u composite MgAl-LDH@AC k\u1ebft h\u1ee3p polymer cation.","display_name":"Nghi\u00ean c\u1ee9u t\u1ed5ng h\u1ee3p k\u1ebdm undecylenat v\u00e0 \u0111\u00e1nh gi\u00e1 hi\u1ec7u qu\u1ea3 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i sau ph\u1ea3n \u1ee9ng b\u1eb1ng v\u1eadt li\u1ec7u composite MgAl-LDH@AC k\u1ebft h\u1ee3p polymer cation.","publication_year":2026,"publication_date":"2026-09-09","ids":{"openalex":"https://openalex.org/W7212373975","doi":"https://doi.org/10.58334/vrtc.jtst.vol.015.918"},"language":"vi","primary_location":{"id":"doi:10.58334/vrtc.jtst.vol.015.918","doi":"https://doi.org/10.58334/vrtc.jtst.vol.015.918","is_oa":true,"landing_page_url":"https://doi.org/10.58334/vrtc.jtst.vol.015.918","pdf_url":"https://tapchikhcnnd.mod.gov.vn/index.php/tckhcnnd/article/download/918/681","source":{"id":"https://openalex.org/S4387285508","display_name":"T\u1ea1p ch\u00ed Khoa h\u1ecdc v\u00e0 C\u00f4ng ngh\u1ec7 nhi\u1ec7t \u0111\u1edbi","issn_l":"0866-7535","issn":["0866-7535","3126-3607"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"T\u1ea1p ch\u00ed Khoa h\u1ecdc v\u00e0 C\u00f4ng ngh\u1ec7 Nhi\u1ec7t \u0111\u1edbi","raw_type":"journal-article"},"parent_works":[],"lineage":["https://openalex.org/W7212373975"],"child_works_count":0,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"https://tapchikhcnnd.mod.gov.vn/index.php/tckhcnnd/article/download/918/681","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5121826091","display_name":"Huynh Nhi Le","orcid":"https://orcid.org/0009-0009-2439-3623","observed_orcids":["https://orcid.org/0009-0009-2439-3623"]},"institutions":[{"id":"https://openalex.org/I4405253246","display_name":"Joint Vietnam-Russia Tropical Science and Technology Research Center","ror":"https://ror.org/00ew91b62","country_code":"VN","type":"government","lineage":["https://openalex.org/I4405253246"]}],"countries":["VN"],"is_corresponding":false,"raw_author_name":"Hu\u1ef3nh Nhi L\u00ea","raw_affiliation_strings":["Chi nh\u00e1nh Ph\u00eda Nam, Trung t\u00e2m Nhi\u1ec7t \u0111\u1edbi Vi\u1ec7t - Nga, Tp. H\u1ed3 Ch\u00ed Minh, Vi\u1ec7t Nam"],"raw_orcid":"https://orcid.org/0009-0009-2439-3623","affiliations":[{"raw_affiliation_string":"Chi nh\u00e1nh Ph\u00eda Nam, Trung t\u00e2m Nhi\u1ec7t \u0111\u1edbi Vi\u1ec7t - Nga, Tp. H\u1ed3 Ch\u00ed Minh, Vi\u1ec7t Nam","institution_ids":["https://openalex.org/I4405253246"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5056349083","display_name":"Hoang Thanh Long","orcid":"https://orcid.org/0009-0006-0011-566X","observed_orcids":["https://orcid.org/0009-0006-0011-566X"]},"institutions":[{"id":"https://openalex.org/I4405253246","display_name":"Joint Vietnam-Russia Tropical Science and Technology Research Center","ror":"https://ror.org/00ew91b62","country_code":"VN","type":"government","lineage":["https://openalex.org/I4405253246"]}],"countries":["VN"],"is_corresponding":false,"raw_author_name":"Thanh Long Ho\u00e0ng","raw_affiliation_strings":["Chi nh\u00e1nh Ph\u00eda Nam, Trung t\u00e2m Nhi\u1ec7t \u0111\u1edbi Vi\u1ec7t - Nga, Tp. H\u1ed3 Ch\u00ed Minh, Vi\u1ec7t Nam"],"raw_orcid":"https://orcid.org/0009-0006-0011-566X","affiliations":[{"raw_affiliation_string":"Chi nh\u00e1nh Ph\u00eda Nam, Trung t\u00e2m Nhi\u1ec7t \u0111\u1edbi Vi\u1ec7t - Nga, Tp. H\u1ed3 Ch\u00ed Minh, Vi\u1ec7t Nam","institution_ids":["https://openalex.org/I4405253246"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5079008797","display_name":"Thi Thu Xuan Nguyen","orcid":"https://orcid.org/0009-0006-1594-3396","observed_orcids":["https://orcid.org/0009-0006-1594-3396"]},"institutions":[{"id":"https://openalex.org/I4405253246","display_name":"Joint Vietnam-Russia Tropical Science and Technology Research Center","ror":"https://ror.org/00ew91b62","country_code":"VN","type":"government","lineage":["https://openalex.org/I4405253246"]}],"countries":["VN"],"is_corresponding":false,"raw_author_name":"Th\u1ecb Thu Xu\u00e2n Nguy\u1ec5n","raw_affiliation_strings":["Chi nh\u00e1nh Ph\u00eda Nam, Trung t\u00e2m Nhi\u1ec7t \u0111\u1edbi Vi\u1ec7t - Nga, Tp. H\u1ed3 Ch\u00ed Minh, Vi\u1ec7t Nam"],"raw_orcid":"https://orcid.org/0009-0006-1594-3396","affiliations":[{"raw_affiliation_string":"Chi nh\u00e1nh Ph\u00eda Nam, Trung t\u00e2m Nhi\u1ec7t \u0111\u1edbi Vi\u1ec7t - Nga, Tp. H\u1ed3 Ch\u00ed Minh, Vi\u1ec7t Nam","institution_ids":["https://openalex.org/I4405253246"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5020419396","display_name":"Thanh Van Doan","orcid":"https://orcid.org/0000-0002-5529-7740","observed_orcids":["https://orcid.org/0000-0002-5529-7740"]},"institutions":[{"id":"https://openalex.org/I4405253246","display_name":"Joint Vietnam-Russia Tropical Science and Technology Research Center","ror":"https://ror.org/00ew91b62","country_code":"VN","type":"government","lineage":["https://openalex.org/I4405253246"]}],"countries":["VN"],"is_corresponding":false,"raw_author_name":"Thanh V\u00e2n \u0110o\u00e0n","raw_affiliation_strings":["Chi nh\u00e1nh Ph\u00eda Nam, Trung t\u00e2m Nhi\u1ec7t \u0111\u1edbi Vi\u1ec7t - Nga, Tp. H\u1ed3 Ch\u00ed Minh, Vi\u1ec7t Nam"],"raw_orcid":"https://orcid.org/0000-0002-5529-7740","affiliations":[{"raw_affiliation_string":"Chi nh\u00e1nh Ph\u00eda Nam, Trung t\u00e2m Nhi\u1ec7t \u0111\u1edbi Vi\u1ec7t - Nga, Tp. H\u1ed3 Ch\u00ed Minh, Vi\u1ec7t Nam","institution_ids":["https://openalex.org/I4405253246"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5114800002","display_name":"Th\u1ecb V\u00e2n \u0110inh","orcid":"https://orcid.org/0009-0005-6475-8210","observed_orcids":["https://orcid.org/0009-0005-6475-8210"]},"institutions":[{"id":"https://openalex.org/I4405253246","display_name":"Joint Vietnam-Russia Tropical Science and Technology Research Center","ror":"https://ror.org/00ew91b62","country_code":"VN","type":"government","lineage":["https://openalex.org/I4405253246"]}],"countries":["VN"],"is_corresponding":false,"raw_author_name":"Th\u1ecb V\u00e2n \u0110inh","raw_affiliation_strings":["Chi nh\u00e1nh Ph\u00eda Nam, Trung t\u00e2m Nhi\u1ec7t \u0111\u1edbi Vi\u1ec7t - Nga, Tp. H\u1ed3 Ch\u00ed Minh, Vi\u1ec7t Nam"],"raw_orcid":"https://orcid.org/0009-0005-6475-8210","affiliations":[{"raw_affiliation_string":"Chi nh\u00e1nh Ph\u00eda Nam, Trung t\u00e2m Nhi\u1ec7t \u0111\u1edbi Vi\u1ec7t - Nga, Tp. H\u1ed3 Ch\u00ed Minh, Vi\u1ec7t Nam","institution_ids":["https://openalex.org/I4405253246"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I4405253246"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"15","issue":"3","first_page":"68","last_page":"80"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10016","display_name":"Adsorption and biosorption for pollutant removal","score":0.8345000147819519,"subfield":{"id":"https://openalex.org/subfields/2312","display_name":"Water Science and Technology"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10016","display_name":"Adsorption and biosorption for pollutant removal","score":0.8345000147819519,"subfield":{"id":"https://openalex.org/subfields/2312","display_name":"Water Science and Technology"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11188","display_name":"Coagulation and Flocculation Studies","score":0.12219999730587006,"subfield":{"id":"https://openalex.org/subfields/2312","display_name":"Water Science and Technology"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11940","display_name":"Layered Double Hydroxides Synthesis and Applications","score":0.01730000041425228,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/undecylenic-acid","display_name":"undecylenic acid","score":0.8690000176429749},{"id":"https://openalex.org/keywords/layered-double-hydroxides","display_name":"layered double hydroxides","score":0.925000011920929},{"id":"https://openalex.org/keywords/activated-carbon","display_name":"activated carbon","score":0.9179999828338623},{"id":"https://openalex.org/keywords/cationic-polyacrylamide","display_name":"cationic polyacrylamide","score":0.9419999718666077},{"id":"https://openalex.org/keywords/zinc-removal","display_name":"zinc removal","score":0.6629999876022339},{"id":"https://openalex.org/keywords/chloride-removal","display_name":"chloride removal","score":0.8920000195503235},{"id":"https://openalex.org/keywords/salinity-reduction","display_name":"salinity reduction","score":0.8460000157356262},{"id":"https://openalex.org/keywords/total-organic-carbon-removal","display_name":"total organic carbon removal","score":0.6499999761581421},{"id":"https://openalex.org/keywords/adsorption-kinetics","display_name":"adsorption kinetics","score":0.6010000109672546},{"id":"https://openalex.org/keywords/langmuir-isotherm","display_name":"Langmuir isotherm","score":0.9309999942779541},{"id":"https://openalex.org/keywords/coagulation-flocculation","display_name":"coagulation-flocculation","score":0.9049999713897705},{"id":"https://openalex.org/keywords/heavy-metal-removal-from-wastewater","display_name":"heavy metal wastewater treatment","score":0.6949999928474426}],"concepts":[{"id":"https://openalex.org/C104779481","wikidata":"https://www.wikidata.org/wiki/Q50707","display_name":"Composite number","level":2,"score":0.5575000047683716},{"id":"https://openalex.org/C145148216","wikidata":"https://www.wikidata.org/wiki/Q36496","display_name":"Ion","level":2,"score":0.47540000081062317},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.4203000068664551},{"id":"https://openalex.org/C199289684","wikidata":"https://www.wikidata.org/wiki/Q83353","display_name":"Mineralogy","level":1,"score":0.4117000102996826},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.38909998536109924},{"id":"https://openalex.org/C521977710","wikidata":"https://www.wikidata.org/wiki/Q81163","display_name":"Polymer","level":2,"score":0.3856000006198883},{"id":"https://openalex.org/C73523448","wikidata":"https://www.wikidata.org/wiki/Q1989369","display_name":"Ion-exchange resin","level":2,"score":0.3319000005722046},{"id":"https://openalex.org/C117760992","wikidata":"https://www.wikidata.org/wiki/Q389137","display_name":"Ion exchange","level":3,"score":0.3176000118255615},{"id":"https://openalex.org/C13965031","wikidata":"https://www.wikidata.org/wiki/Q243545","display_name":"Nuclear chemistry","level":1,"score":0.3084000051021576},{"id":"https://openalex.org/C42360764","wikidata":"https://www.wikidata.org/wiki/Q83588","display_name":"Chemical engineering","level":1,"score":0.29030001163482666},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.2865000069141388},{"id":"https://openalex.org/C140205800","wikidata":"https://www.wikidata.org/wiki/Q5860","display_name":"Carbon fibers","level":3,"score":0.27399998903274536},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.26600000262260437}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.58334/vrtc.jtst.vol.015.918","doi":"https://doi.org/10.58334/vrtc.jtst.vol.015.918","is_oa":true,"landing_page_url":"https://doi.org/10.58334/vrtc.jtst.vol.015.918","pdf_url":"https://tapchikhcnnd.mod.gov.vn/index.php/tckhcnnd/article/download/918/681","source":{"id":"https://openalex.org/S4387285508","display_name":"T\u1ea1p ch\u00ed Khoa h\u1ecdc v\u00e0 C\u00f4ng ngh\u1ec7 nhi\u1ec7t \u0111\u1edbi","issn_l":"0866-7535","issn":["0866-7535","3126-3607"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"T\u1ea1p ch\u00ed Khoa h\u1ecdc v\u00e0 C\u00f4ng ngh\u1ec7 Nhi\u1ec7t \u0111\u1edbi","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.58334/vrtc.jtst.vol.015.918","doi":"https://doi.org/10.58334/vrtc.jtst.vol.015.918","is_oa":true,"landing_page_url":"https://doi.org/10.58334/vrtc.jtst.vol.015.918","pdf_url":"https://tapchikhcnnd.mod.gov.vn/index.php/tckhcnnd/article/download/918/681","source":{"id":"https://openalex.org/S4387285508","display_name":"T\u1ea1p ch\u00ed Khoa h\u1ecdc v\u00e0 C\u00f4ng ngh\u1ec7 nhi\u1ec7t \u0111\u1edbi","issn_l":"0866-7535","issn":["0866-7535","3126-3607"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"T\u1ea1p ch\u00ed Khoa h\u1ecdc v\u00e0 C\u00f4ng ngh\u1ec7 Nhi\u1ec7t \u0111\u1edbi","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/6","display_name":"Clean water and sanitation","score":1.0},{"id":"https://metadata.un.org/sdg/12","display_name":"Responsible consumption and production","score":1.0}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7212373975.pdf","grobid_xml":"https://content.openalex.org/works/W7212373975.grobid-xml"},"referenced_works_count":12,"referenced_works":["https://openalex.org/W2760243880","https://openalex.org/W2783062536","https://openalex.org/W2944374155","https://openalex.org/W2989067583","https://openalex.org/W3003203920","https://openalex.org/W3048164637","https://openalex.org/W3131241934","https://openalex.org/W4206702689","https://openalex.org/W4390546815","https://openalex.org/W4391278339","https://openalex.org/W4399164698","https://openalex.org/W7129215931"],"related_works":["https://openalex.org/W2989425297","https://openalex.org/W4310329735","https://openalex.org/W3004029660","https://openalex.org/W6907598484","https://openalex.org/W4248946495","https://openalex.org/W4388535943","https://openalex.org/W4414128614","https://openalex.org/W4310731417","https://openalex.org/W4416115855","https://openalex.org/W4413193180"],"abstract_inverted_index":{"B\u00e0i":[0],"b\u00e1o":[1],"tr\u00ecnh":[2,118],"b\u00e0y":[3],"k\u1ebft":[4,76,149,234],"qu\u1ea3":[5,85,154,178,229],"nghi\u00ean":[6],"c\u1ee9u":[7],"t\u1ed5ng":[8,68],"h\u1ee3p":[9,69,120,150,235],"k\u1ebdm":[10,18,45,95,198],"undecylenat":[11],"t\u1eeb":[12],"axit":[13],"undecylenic,":[14],"natri":[15],"hydroxyt":[16],"v\u00e0":[17,24,34,52,78,96,128,143,209,222,248],"clorua,":[19],"\u0111\u1ea1t":[20,132],"hi\u1ec7u":[21,153],"su\u1ea5t":[22],"98,85%":[23],"\u0111\u1ed9":[25,48,99,187,196],"tinh":[26],"khi\u1ebft":[27],"98,92%,":[28],"\u0111\u01b0\u1ee3c":[29,67,157],"x\u00e1c":[30],"nh\u1eadn":[31],"b\u1eb1ng":[32,72,81],"FT-IR":[33],"Raman.":[35],"N\u01b0\u1edbc":[36],"th\u1ea3i":[37,61,182,191,254],"sau":[38],"ph\u1ea3n":[39],"\u1ee9ng":[40,225],"\u0111\u1ed3ng":[41,75,243],"th\u1eddi":[42,244],"ch\u1ee9a":[43],"ion":[44,94,106,197],"(240,9":[46],"mg/L),":[47],"m\u1eb7n":[49,100,188],"(4,5":[50],"\u2030)":[51],"TOC":[53,204,221],"cao":[54,159],"(554,95":[55],"mg/L).":[56],"\u0110\u1ec3":[57],"x\u1eed":[58,155,179,241],"l\u00fd":[59,156,180,242],"n\u01b0\u1edbc":[60,181,190,253],"n\u00e0y,":[62],"v\u1eadt":[63,88],"li\u1ec7u":[64,89],"composite":[65],"MgAl-LDH@AC":[66,233],"th\u00e0nh":[70],"c\u00f4ng":[71],"ph\u01b0\u01a1ng":[73],"ph\u00e1p":[74],"t\u1ee7a":[77],"\u0111\u1eb7c":[79],"tr\u01b0ng":[80],"XRD,":[82],"SEM.":[83],"K\u1ebft":[84,177,228],"cho":[86,185],"th\u1ea5y":[87,186],"c\u00f3":[90,238],"kh\u1ea3":[91,239],"n\u0103ng":[92,240],"lo\u1ea1i":[93,104,169,219],"l\u00e0m":[97],"gi\u1ea3m":[98,192,199],"(th\u00f4ng":[101],"qua":[102,109],"vi\u1ec7c":[103],"b\u1ecf":[105,170],"clorua)":[107],"th\u00f4ng":[108],"c\u01a1":[110,161,174,251],"ch\u1ebf":[111,162],"t\u01b0\u01a1ng":[112],"t\u00e1c":[113],"h\u00f3a":[114],"h\u1ecdc,":[115],"v\u1edbi":[116],"qu\u00e1":[117],"ph\u00f9":[119],"m\u00f4":[121],"h\u00ecnh":[122],"\u0111\u1ed9ng":[123],"h\u1ecdc":[124],"gi\u1ea3":[125],"b\u1eadc":[126],"hai":[127],"\u0111\u1eb3ng":[129],"nhi\u1ec7t":[130],"Langmuir,":[131],"dung":[133],"l\u01b0\u1ee3ng":[134],"h\u1ea5p":[135],"ph\u1ee5":[136],"c\u1ef1c":[137],"\u0111\u1ea1i":[138],"82,78":[139],"mg/g":[140,145],"(ion":[141,146],"k\u1ebdm)":[142],"29,15":[144],"clorua).":[147],"Khi":[148],"cation":[151,237],"polyacrylamide,":[152],"n\u00e2ng":[158],"nh\u1edd":[160],"keo":[163],"t\u1ee5":[164],"-":[165],"t\u1ea1o":[166],"b\u00f4ng,":[167],"gi\u00fap":[168],"c\u00e1c":[171,214],"ch\u1ea5t":[172,249],"h\u1eefu":[173,250],"ph\u00e2n":[175],"t\u00e1n.":[176],"th\u1ef1c":[183],"t\u1ebf":[184],"c\u1ee7a":[189],"kho\u1ea3ng":[193],"25%,":[194],"n\u1ed3ng":[195],"xu\u1ed1ng":[200],"2,08":[201],"mg/L":[202,207],"(~99,1%),":[203],"c\u00f2n":[205],"5,85":[206],"(~98,9%)":[208],"pH":[210,223],"duy":[211],"tr\u00ec":[212],"6\u20138;":[213],"ch\u1ec9":[215],"s\u1ed1":[216],"v\u1ec1":[217],"kim":[218,245],"n\u1eb7ng,":[220],"\u0111\u00e1p":[224],"QCVN":[226],"40:2025/BTNMT.":[227],"ch\u1ee9ng":[230],"minh":[231],"h\u1ec7":[232],"polymer":[236],"lo\u1ea1i,":[246],"anion":[247],"trong":[252],"ph\u1ee9c":[255],"t\u1ea1p.":[256]},"counts_by_year":[],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2026-09-13T00:00:00"}