{"id":"https://openalex.org/A5025149686","orcid":"https://orcid.org/0000-0002-9643-2320","observed_orcids":["https://orcid.org/0000-0002-9643-2320"],"display_name":"Portia Madzivha","raw_author_names":["Portia Madzivha"],"full_name":"Portia Madzivha","works_count":5,"cited_by_count":15,"summary_stats":{"2yr_mean_citedness":3.0,"h_index":3,"i10_index":0},"ids":{"openalex":"https://openalex.org/A5025149686","orcid":"https://orcid.org/0000-0002-9643-2320","observed_orcids":["https://orcid.org/0000-0002-9643-2320"]},"affiliations":[{"institution":{"id":"https://openalex.org/I17948180","ror":"https://ror.org/05snt2t16","display_name":"Mintek","country_code":"ZA","type":"facility","lineage":["https://openalex.org/I17948180"]},"years":[2026,2023]},{"institution":{"id":"https://openalex.org/I192619145","ror":"https://ror.org/03rp50x72","display_name":"University of the Witwatersrand","country_code":"ZA","type":"education","lineage":["https://openalex.org/I192619145"]},"years":[2026,2023]}],"last_known_institutions":[{"id":"https://openalex.org/I17948180","ror":"https://ror.org/05snt2t16","display_name":"Mintek","country_code":"ZA","type":"facility","lineage":["https://openalex.org/I17948180"]},{"id":"https://openalex.org/I192619145","ror":"https://ror.org/03rp50x72","display_name":"University of the Witwatersrand","country_code":"ZA","type":"education","lineage":["https://openalex.org/I192619145"]}],"topics":[{"id":"https://openalex.org/T10079","display_name":"Nanoparticles: synthesis and applications","count":2,"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"}},{"id":"https://openalex.org/T13793","display_name":"Environmental and Analytical Chemistry Studies","count":2,"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/T10016","display_name":"Adsorption and biosorption for pollutant removal","count":1,"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/T10131","display_name":"Gold and Silver Nanoparticles Synthesis and Applications","count":1,"subfield":{"id":"https://openalex.org/subfields/2504","display_name":"Electronic, Optical and Magnetic Materials"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10180","display_name":"Analytical chemistry methods development","count":1,"subfield":{"id":"https://openalex.org/subfields/1602","display_name":"Analytical Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T10079","display_name":"Nanoparticles: synthesis and applications","value":8.6e-06,"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"}},{"id":"https://openalex.org/T14178","display_name":"Environmental Science and Water Management","value":7.9e-06,"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/T11220","display_name":"Water Systems and Optimization","value":6.2e-06,"subfield":{"id":"https://openalex.org/subfields/2205","display_name":"Civil and Structural Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13793","display_name":"Environmental and Analytical Chemistry Studies","value":5.7e-06,"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/T12282","display_name":"Mineral Processing and Grinding","value":5.6e-06,"subfield":{"id":"https://openalex.org/subfields/2210","display_name":"Mechanical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"x_concepts":[{"id":"39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","score":0.5232999920845032},{"id":"192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","score":0.5055959224700928},{"id":"185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","score":0.39852142333984375},{"id":"107872376","wikidata":"https://www.wikidata.org/wiki/Q321355","display_name":"Environmental chemistry","score":0.355711966753006},{"id":"87717796","wikidata":"https://www.wikidata.org/wiki/Q146326","display_name":"Environmental engineering","score":0.2624000012874603}],"counts_by_year":[{"year":2023,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2025,"works_count":1,"oa_works_count":1,"cited_by_count":1},{"year":2026,"works_count":3,"oa_works_count":2,"cited_by_count":14}],"display_name_alternatives":["Portia Madzivha"],"block_key":"p madzivha","works_api_url":"https://api.openalex.org/works?filter=author.id:A5025149686","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5025149686","updated_date":"2026-11-10T14:30:39","created_date":"2023-04-13T00:00:00"}