Article
Biotechnology & Applied Microbiology
Zhou Hui, Xie Yi, Xuqian Wang, Yang Huan, Yabo Wang, Yongkui Zhang
Summary: Aluminum-doped hydroxyapatite (Al-HAP) was synthesized as an efficient adsorbent for uranium removal from aqueous solution, showing good adsorption performance and reusability, and having potential for practical application.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Chemistry, Physical
Hongguang Zhou, Youlin Tan, Yanmei Yang, Yue Zhang, Xiaoyu Lei, Donghai Yuan
Summary: The development and application of new materials for phosphate removal is crucial, with FeMg2Mn-LDH showing the best phosphate removal capacity and fastest adsorption kinetics among different Fe/Mg/Mn ratio LDHs. The process is spontaneous and endothermic, with an ion exchange mechanism and the formation of surface complexes via electrostatic attraction and complexations.
APPLIED CLAY SCIENCE
(2021)
Article
Engineering, Environmental
Tao Zhang, Liuchun Zheng, Huajian Yu, Jingjing Ren, Lijuan Zhang, Peipei Meng, Dan Peng
Summary: The study showed that the presence of Cd(II) decreased the adsorption of SMZ due to hydrophilic site competition, while SMZ increased the adsorption of Cd(II) through bridging and electrostatic shielding effects. This inhibitory and synergistic effects were more pronounced in the binary system at a pH of 7.5, indicating a dynamic balance between them depending on the system, pH value, and concentration ratio. DFT results suggested that SMZ coordinated more easily with Cd(II) at sulfonyl oxygen and nitrogen sites, and the cationic bridge of Cd(II) with SMZ mainly occurred in the sequential system, with a complexation-decomplexation-complexation balance in the binary system.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Henrique Santana de Carvalho Neves, Thiago Lopes da Silva, Meuris Gurgel Carlos da Silva, Reginaldo Guirardello, Melissa Gurgel Adeodato Vieira
Summary: The use of mineral clays as alternative adsorbent has been explored due to their physicochemical characteristics and low cost. In this study, expanded vermiculite and sodium-modified vermiculite were evaluated for their adsorption capacity and ion exchange of Cd2+ ions. The sodification process successfully increased the ion exchange capacity of the modified clay, resulting in higher adsorptive capacity and faster kinetics for Cd2+ removal. Despite the decrease in surface area after sodification, the modified adsorbent showed a significant increase in adsorptive capacity.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Agricultural Engineering
Tingting Yang, Yingming Xu, Qingqing Huang, Yuebing Sun, Xuefeng Liang, Lin Wang, Xu Qin, Lijie Zhao
Summary: In this study, Fe/Zn-RBC and Fe/Zn-DBC adsorbents were successfully prepared for Cd(II) removal in water, showing significantly higher sorption capacities compared to unmodified RBC and DBC. The adsorption mechanisms of Fe/Zn-BC on Cd(II) may involve precipitation and chemical binding, providing potential applications in waste resource utilization.
BIORESOURCE TECHNOLOGY
(2021)
Article
Environmental Sciences
Hai Lin, Dongsheng Yang, Conghui Zhang, Wei Liu, Liping Zhang, Yingbo Dong
Summary: Modified biochars have great potential for removing heavy metals from aquatic environments, but the presence of macro amounts of metal ions, such as Ca, usually affects the removal of heavy metals by biochars. Increasing the alkali metal content of biochar to enhance its ion exchange capacity is a promising method to improve its selectivity.
Article
Environmental Sciences
Haibin Fu, Bingyu Wang, Detian Li, Lihong Xue, Yun Hua, Yanfang Feng, Huifang Xie
Summary: Hydrothermal carbonization technology and anaerobic fermentation technology have gained attention in recent years for their ability to improve surface properties and enhance adsorption capacity of carbon materials. Through experiments on wheat straw and poplar sawdust hydrochars, it was found that anaerobic fermentation significantly improved the adsorption capacity, with a more pronounced effect on wheat straw hydrochar.
Article
Engineering, Environmental
Yulai Zhang, Xiaodong Li, Xiangping Chen, Risto Koivula, Junhua Xu
Summary: This study investigated the removal of cobalt from wastewater using synthesized manganese oxides from recovered LiMn2O4. Various characterizations and sodium hydroxide titration were performed on the synthesized tunnel MnO2. The gamma-MnO2 demonstrated the highest uptake amount and distribution coefficient at pH 6.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Polymer Science
Muge Andac, Emel Tamahkar, Adil Denizli
Summary: The newly synthesized smart adsorbents used in this study are capable of selectively removing nickel [Ni(II)] ions from aqueous solutions with dual (pH and temperature) memory due to self-assembled recognition sites in the MIP structure. These smart cryogels demonstrate a maximum binding capacity for Ni(II) ions and achieve equilibrium adsorption within a short time frame, making them efficient and practical for water and wastewater treatment applications.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Engineering, Environmental
Jianhua Sha, Lulu Li, Zexiu An, Maoxia He, Haiyan Yu, Yao Wang, Baoyu Gao, Shiping Xu
Summary: This study revealed the contrasting effects of Cu2+ on the adsorption and photodegradation of sulfamerazine (SMZ) and ciprofloxacin (CIP) in a g-C3N4/visible light system. The complexation effect of Cu2+ was found to play a key role in inhibiting the reactivity of antibiotics during photodegradation. A proposed approach of complexation replacement aims to mitigate this inhibition, highlighting the specificity of interactions between antibiotics and heavy metals.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Khizar Hussain Shah, Noor S. Shah, Gul Afshan Khan, Sadaf Sarfraz, Jibran Iqbal, Aneeqa Batool, Ahmad Jwuiyad, Shabnam Shahida, Changseok Han, Monika Wawrzkiewicz
Summary: This study investigates and compares the influence of surface functional groups and chemical matrices of macroporous resin on the exchange mechanism of Cr(III) ions. The results show that sulfonic resin has faster kinetics and higher equilibrium exchange capacity for Cr(III) ions compared to carboxylic resin. Adsorption isotherms indicate that carboxylic resin has higher affinity for Cr(III) removal at low metal ion concentrations. The findings provide valuable insights for the selection of macroporous resins as adsorbents in water filtration systems.
Article
Engineering, Chemical
Dmitriy Berillo, Aknazar Arysbek
Summary: This study demonstrates the effective removal of silver nanoparticles (AgNPs) using a chitosan-based cryogel, which has potential applications in agriculture, water treatment, and industrial plants. The adsorbent is economically viable, has high affinity toward metal nanoparticles, is biodegradable and biocompatible, and displays good removal efficiency of nanoparticles.
Article
Polymer Science
Tianyi Zhong, Xiyun Feng, Lifen Sun, Jinmeng Zhang, Yiran Tian, Xufeng Zhang
Summary: A pure poly(vinyl imidazole) cryogel was fabricated using an improved method, showing robust underwater elastic performance and excellent adsorption capacity for Cu(II) ions with a high efficiency of 99.99% and a capacity of 148 mg/g. The cryogel also demonstrated promising reusability and regeneration capability for Cu(II) removal.
Article
Environmental Sciences
Tiziana Missana, Ursula Alonso, Natalia Mayordomo, Miguel Garcia-Gutierrez
Summary: Cadmium is a highly toxic heavy metal pollutant with strict exposure limits. This study investigated the immobilization of cadmium by smectite clay through batch sorption tests and utilized a thermodynamic model to interpret the experimental data. The results showed that the precipitation of otavite (CdCO3) has a limited contribution to the immobilization of cadmium under the studied conditions.
Review
Materials Science, Composites
Tonni Agustiono Kurniawan, Wai-Hung Lo, Xue Liang, Hui Hwang Goh, Mohd Hafiz Dzarfan Othman, Kok-Keong Chong, Ayesha Mohyuddin, Axel Olaf Kern, Kit Wayne Chew
Summary: Due to its low cost, biosorption technology using biosorbents has been extensively used in the treatment of heavy metal-laden wastewater. Recent studies have enhanced scientific understanding of heavy metal biosorption mechanisms and mathematical modeling of the process. However, there is a lack of comprehensive overview of mechanistic studies on heavy metal removal using inexpensive biosorbents. This article discusses the applicability of the surface complexation model and presents insights and future directions in wastewater treatment using digital technologies.
JOURNAL OF COMPOSITES SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Daryoush Sanaei, Mohammad Hadi Dehghani, Hamidreza Sharifan, Monika Jain, Bahram Roshan, Javier A. Arcibar-Orozco, Vassilis J. Inglezakis
Summary: In this study, a novel carbon aerogel (CAg) synthesized from sodium alginate (SA) was used as a precursor to create a double-B-site perovskite/carbon aerogel hybrid adsorbent ((Sr0.7Mn0.3Co0.5Fe0.5O3-delta)/CAg) (DB-perovskite/CAg hybrid). The adsorbent showed high removal efficiency for crystal violet (CV) and acid yellow 17 (AY17) in an aqueous system. The doping of Mn in the DB-perovskite/CAg hybrid led to improved adsorption through the introduction of abundant active sites and strengthening of metal-functional groups.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Physical
Dimitris Mitrogiannis, Maria Psychoyou, Ioannis Baziotis, Constantinos Mavrogonatos, Nikolaos Koukouzas, Ioannis Anastopoulos, Marios Fyrillas, Vassilis J. Inglezakis
Summary: This study presents equilibrium and kinetic experiments for the adsorption of PO4-P from aqueous solutions onto sustainable and low-cost modified adsorbents. The kinetics of PO4-P adsorption were analyzed using a dimensionless two-phase homogeneous surface diffusion model (TP-HSDM) and the double selectivity isotherm equation (DSM). The TP-HSDM fit the data well with an average relative error of 14.6% and 17.4% for CaT-Z and CaT-B, respectively. The mass transfer mechanism was found to be intraparticle diffusion for both materials, as indicated by the dimensionless Biot number.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Materials Science, Multidisciplinary
Kydyr Askaruly, Alina Korobeinyk, Seitkhan Azat, Mukhtar Yeleuov, Azamat Taurbekov, Kainaubek Toshtay, Zhandos Tauanov, Xintai Su
Summary: In this study, amorphous silica powders (1-SiO2 and 2-SiO2) and activated carbon with few-layer graphene were derived from rice husk using a simple and efficient process. The synthesized samples were characterized and the feasibility of using them as anode materials for Li-ion batteries was evaluated. The 2-SiO2 material exhibited a large specific surface area, high purity, and large pore volume, resulting in a reversible capacity of about 841 and 442 mAh g-1 (1st and 50th cycle) with a coulombic efficiency higher than 95%. The activated carbon demonstrated the highest initial discharge specific capacity and stable reversible capacity after 50 cycles, with a coulombic efficiency higher than 90%.
DIAMOND AND RELATED MATERIALS
(2023)
Editorial Material
Engineering, Environmental
Iliana Papamichael, Georgios Pappas, Joshua E. Siegel, Vassilis J. Inglezakis, Giorgos Demetriou, Antonis A. Zorpas, Constantinos Hadjisavvas
WASTE MANAGEMENT & RESEARCH
(2023)
Review
Environmental Sciences
Kaldibek Abdiyev, Seitkhan Azat, Erzhan Kuldeyev, Darkhan Ybyraiymkul, Sana Kabdrakhmanova, Ronny Berndtsson, Bostandyk Khalkhabai, Ainur Kabdrakhmanova, Shynggyskhan Sultakhan
Summary: Providing safe drinking water to people in developing countries is an urgent worldwide issue. Slow sand filters can efficiently provide safe drinking water to rural communities without central water supply, especially by acting as a biological filter. However, factors like low temperature and reduced sand depth can affect the efficiency of these filters, and further research is needed in these areas, specifically for developing countries.
Article
Environmental Sciences
Erzhan Kuldeyev, Makpal Seitzhanova, Sandugash Tanirbergenova, Kairat Tazhu, Erlan Doszhanov, Zulkhair Mansurov, Seitkhan Azat, Ruslan Nurlybaev, Ronny Berndtsson
Summary: Problems with increasing heavy metal contents in natural waters are a global issue. Improved methods for water treatment, such as using natural zeolites, are important. This paper investigates how the adsorption capacity of natural zeolites can be improved and finds that thermal activation greatly enhances their adsorption capacity for heavy metals.
Article
Energy & Fuels
Faheem Akhter, Suhail Ahmed Soomro, V. J. Inglezakis
Summary: Two highly mesoporous silica aerogels were synthesized using rice husk ash as a precursor and sol-gel aging and drying as the method. The aerogels were modified using organic solvents and characterized using various techniques. The aerogels showed excellent removal efficiency for Pb(II) from aqueous solutions, with isolated aging resulting in enhanced removal compared to simultaneous aging. Isotherm and kinetic studies confirmed the effectiveness of the adsorption process.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Chemistry, Multidisciplinary
Vassilis J. Inglezakis, Aliya Kudarova, Almira Guney, Nurassyl Kinayat, Zhandos Tauanov
Summary: The reduction and elimination of mercury in industrial activities and waste streams are crucial for the circular economy. Natural zeolite impregnated with silver was found to effectively remove mercury from aqueous solutions. The effectiveness of the zeolites was influenced by the form of silver and the speciation of mercury in the aqueous phase. Compared to commercial adsorbents, natural zeolite and the Ag0 form performed better in mercury removal. The use of abundant and environmentally-friendly natural zeolite as a sustainable alternative adsorbent is attractive.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2023)
Article
Materials Science, Multidisciplinary
Kydyr Askaruly, Mukhtar Yeleuov, Azamat Taurbekov, Bibigul Sarsembayeva, Aidos Tolynbekov, Nurzhamal Zhylybayeva, Seitkhan Azat, Alisher Abdisattar, Chingis Daulbayev
Summary: To overcome the drawbacks of SiO2 as an anode material for LIBs, we propose an inexpensive and simple method to synthesize amorphous SiO2 particles from rice husks and encapsulate them in a carbon shell. The resulting composite shows high cyclic performance and stability, making it a possible solution for next-generation LIBs.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
I. Remissa, H. Jabri, Y. Hairch, K. Toshtay, M. Atamanov, S. Azat, R. Amrousse
Summary: A wide range of propellants and propulsion systems were studied, developed, investigated, and commercialized for space exploration. Liquid, solid, and hybrid propellants have been utilized for rocket launches. This review provides a comprehensive definition of space propulsion systems and discusses the latest developments. The research compares the performances of various propellants using theoretical and experimental specific impulses. Additionally, the need for eco-friendly propellant systems, known as green propellants, for satellite launch or reaction control systems has pushed researchers to explore alternative options due to the high toxicity and storage challenges associated with ammonium perchlorate and hydrazine.
EURASIAN CHEMICO-TECHNOLOGICAL JOURNAL
(2023)
Article
Thermodynamics
Konstantinos Atsonios, Jun Li, Vassilis J. Inglezakis
Summary: Climate change and energy supply drive the production of sustainable aviation fuel. This study compares four pathways for converting captured CO2 into synthetic kerosene, using hydrogen and assessing various technical factors. Results show that the low-temperature CO conversion pathway is the most efficient, with high carbon utilization and thermal efficiency. The produced e-kerosene meets Jet-A1 specifications.
Article
Biochemistry & Molecular Biology
Madina Suleimenova, Saule Zharylkan, Meruyert Mekenova, Alibek Mutushev, Seytkhan Azat, Aidana Tolepova, Alzhan Baimenov, Aliya Satayeva, Zhandos Tauanov
Summary: This study presents the synthesis of zeolites derived from coal fly ash (CFA) using the fusion-assisted alkaline hydrothermal method. The zeolites were synthesized by combining CFA and NaOH at a molar ratio of 1:1.2 under different fusion temperatures. Subsequently, the obtained zeolites were modified by incorporating magnetic (Fe3O4) and silver (Ag-0) nanoparticles (NPs). The synthesized porous materials exhibited the formation of zeolites, and the modified composites showed high adsorption capacities for mercury ions.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Engineering, Environmental
Yerkanat N. Kanafin, Aliya Satayeva, Perizat Abdirova, Vassilis J. Inglezakis, Elizabeth Arkhangelsky, Stavros G. Poulopoulos
Summary: Combining a membrane bioreactor (MBR) and advanced oxidation processes (AOPs), this study aimed to efficiently treat a synthetic wastewater containing emerging pollutants. The results showed that the 10 nm track-etch membrane (TEM) had the highest removal efficiency for emerging pollutants, while the removal efficiency for total organic carbon (TOC) by membranes was low. Complete mineralization of TOC and removal of emerging pollutants were achieved using UV/PS 10 mM /ZVI 25 mg/L for MBR effluents.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
F. Akhter, S. A. Soomro, A. R. Jamali, V. I. Inglezakis
Summary: This study synthesized four different mesoporous silica aerogel variants using rice husk ash as the main precursor and ambient pressure drying method. The modified variants showed high porosity and surface area, indicating potential application as adsorbents for the removal of heavy metals from wastewater.
PHYSICAL CHEMISTRY RESEARCH
(2023)
Article
Engineering, Chemical
Manshuk Mambetova, Gaukhar Yergaziyeva, Kusman Dossumov, Kydyr Askaruly, Seitkhan Azat, Kalampyr Bexeitova, Moldir Anissova, Bedelzhan Baizhomartov
Summary: The article presents the results of comparative research on the physicochemical characteristics and catalytic activity of copper oxide supported on synthetic SiO2 and SiO2 (RH) from rice husk. SiO2 (RH) has a higher hydrophobicity, leading to the concentration of copper oxide on its surface in a crust form, which is crucial in the synthesis of low-percentage catalysts. Using SiO2 (RH) as a carrier increases the dispersion of copper oxide particles, which serve as the active center for ethanol dehydrogenation.
