The active carbons modified by industrial wastes in process of sorption concentration of toxic organic compounds and heavy metals ions

Amerkhanova, Sh. K.; Shlyapov, R. M.; Uali, A. S.

doi:10.1016/j.colsurfa.2017.07.015

Cited by 30 publications

(8 citation statements)

References 7 publications

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“…Their textural properties, including their high specific surface and microporosity, makes it an ideal compound to eliminate contaminants through physical adsorption processes [18]. Commercial ACs are mostly obtained from biomass waste [19,20]. Besides, many researches have been developed on the employ of biomass as a precursor of carbon active such as residues derives form tea, coffee or grapes and olives bones [6,21,22].…”

Section: Introductionmentioning

confidence: 99%

Extraction of Polyphenols and Synthesis of New Activated Carbon from Spent Coffee Grounds

Ramón-Gonçalves¹,

Alcaraz²,

Ferreras³

et al. 2019

Preprint

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A valorization process of spent coffee grounds (SCG) was studied. Thus, a two-stage process, a stage of extraction of the polyphenols and a stage of obtaining activated carbon (AC) by a carbonization process, was performed. The extraction was carried out with a hydro-alcoholic solution in a pressure reactor, modifying time and temperature. To optimize the extraction of polyphenols, a two-level factorial design with three replications at the central values was used. The best results were obtained by performing the extraction at 80 °C during 30 min, using a mixture of EtOH:H2O 1:1 (v/v) as extraction solution. Caffeine and chlorogenic acid were the most abundant compounds in the analyzed extracts, ranging from 0.09 to 4.8 mg∙g-1 and 0.06 to 9.7 mg∙g-1, respectively. The precursor obtained in the extraction stage were transformed into AC. An experimental design was realized in order to analyze the influence of different variables in the AC obtained process (reaction time and amount of potassium hydroxide used). Actived carbons with BET specific surface (SBET) comprised between 1600 m2∙g-1 and 2330 m2∙g-1 had a microporous surface. Under the optimum conditions, the obtained AC presented a maximum adsorption capacity of methylene blue (qm) between 411 mg∙g-1 and 813 mg∙g-1.

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Section: Introductionmentioning

confidence: 99%

Extraction of Polyphenols and Synthesis of New Activated Carbon from Spent Coffee Grounds

Ramón-Gonçalves¹,

Alcaraz²,

Ferreras³

et al. 2019

Preprint

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“…Activated carbon is a highly porous carbon adsorbent, which is obtained from various carbon-containing organic materials [1]. Activated carbon is widely used for treatment, separating and extracting gaseous and liquid substances [2][3][4][5][6]. In the Russian Federation and Kazakhstan, as well as in world practice, the largest share in the consumption of activated carbon is a processing of drinking and technical water.…”

Section: Electroflotation Extraction Of Powdered Carbon-based Materiamentioning

confidence: 99%

Electroflotation Extraction of Powdered Carbon-Based Materials From Aqueous Solution With Using of Surfactants

Kolesnikov¹,

Stoyanova²,

Kolesnikov³

et al. 2019

OF THE NATIONAL ACADEMY OF SCIENCES OF THE REPUBLIC OF KAZAKHST

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News of the Academy of sciences of the Republic of Kazakhstan 2 NAS RK is pleased to announce that News of NAS RK. Series of chemistry and technologies scientific journal has been accepted for indexing in the Emerging Sources Citation Index, a new edition of Web of Science. Content in this index is under consideration by Clarivate Analytics to be accepted in the Science Citation Index Expanded, the Social Sciences Citation Index, and the Arts & Humanities Citation Index. The quality and depth of content Web of Science offers to researchers, authors, publishers, and institutions sets it apart from other research databases. The inclusion of News of NAS RK. Series of chemistry and technologies in the Emerging Sources Citation Index demonstrates our dedication to providing the most relevant and influential content of chemical sciences to our community. Қазақстан Республикасы Ұлттық ғылым академиясы "ҚР ҰҒА Хабарлары. Химия және технология сериясы" ғылыми журналының Web of Science-тің жаңаланған нұсқасы Emerging Sources Citation Index-те индекстелуге қабылданғанын хабарлайды. Бұл индекстелу барысында Clarivate Analytics компаниясы журналды одан әрі the Science Citation Index Expanded, the Social Sciences Citation Index және the Arts & Humanities Citation Index-ке қабылдау мәселесін қарастыруда. Webof Science зерттеушілер, авторлар, баспашылар мен мекемелерге контент тереңдігі мен сапасын ұсынады. ҚР ҰҒА Хабарлары. Химия және технология сериясы Emerging Sources Citation Index-ке енуі біздің қоғамдастық үшін ең өзекті және беделді химиялық ғылымдар бойынша контентке адалдығымызды білдіреді. НАН РК сообщает, что научный журнал «Известия НАН РК. Серия химии и технологий» был принят для индексирования в Emerging Sources Citation Index, обновленной версии Web of Science. Содержание в этом индексировании находится в стадии рассмотрения компанией Clarivate Analytics для дальнейшего принятия журнала в the Science Citation Index Expanded, the Social Sciences Citation Index и the Arts & Humanities Citation Index. Web of Science предлагает качество и глубину контента для исследователей, авторов, издателей и учреждений. Включение Известия НАН РК в Emerging Sources Citation Index демонстрирует нашу приверженность к наиболее актуальному и влиятельному контенту по химическим наукам для нашего сообщества.

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“…В работе [13] установлено, что модифицированный АУ проявляет хорошую адсорбционную способность при адсорбции из водных растворов как относительно органических веществ (фенола, хлороформа, пиридина, анилина), так и ионов тяжелых металлов. Селективность активированного угля по отношению к ионам металлов может быть повышена за счет его модификации оксидами металлов.…”

Section: сорбция сульфаниловой кислоты и ионов меди активированным угunclassified

Сорбция Сульфаниловой Кислоты И Ионов Меди Активированным Углем, Модифицированным Оксидами Металлов

et al. 2019

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The active carbons modified by industrial wastes in process of sorption concentration of toxic organic compounds and heavy metals ions

Cited by 30 publications

References 7 publications

Extraction of Polyphenols and Synthesis of New Activated Carbon from Spent Coffee Grounds

Extraction of Polyphenols and Synthesis of New Activated Carbon from Spent Coffee Grounds

Electroflotation Extraction of Powdered Carbon-Based Materials From Aqueous Solution With Using of Surfactants

Сорбция Сульфаниловой Кислоты И Ионов Меди Активированным Углем, Модифицированным Оксидами Металлов

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