Article
Materials Science, Ceramics
Tripta, Pawan S. Rana
Summary: In this work, NiFe2O4@NiO (1:0, 0.9:0.1, 0.7:0.3, 0.5:0.5, and 0:1) nanocomposites were prepared using a co-precipitation process to investigate their structural, dielectric, and optical properties for potential application in wastewater treatment. XRD, FTIR spectroscopy, and TEM were used to study the structural and morphological properties. The particle size was found to increase with nickel oxide content, and the oxidation state was determined using XPS. The impedance, dielectric constant, dielectric loss, and ac conductivity were observed to increase with nickel oxide concentration. The (0.5NiFe(2)O(4)/0.5NiO) nanocomposite exhibited the highest photocatalytic activity, degrading 95.41% of methylene blue dye within 120 min.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Jinjun Zhang, Ruirui Liu, Meng Kuang, Shuai Xie, Jing Wang, Zhijiang Ji
Summary: A facilely fabricated CQDs/MIL-101(Fe)/g-C3N4 photocatalyst exhibited prominent photocatalytic properties for the degradation of methylene blue. These properties were found to be significantly higher than other materials tested.
Article
Environmental Sciences
Wei Gao, Yufeng Li, Jitao Zhao, Zhe Zhang, Weiwei Tang, Jun Wang, Zhenyu Wu
Summary: Reduced graphene oxide (rGO)/TiO2 nanocomposites, synthesized through a hydrothermal technique, were used as photocatalysts to effectively degrade methylene blue (MB) in industrial dyestuff wastewater. The degradation efficiency of the nanocomposites for MB was as high as 98.18% at 5wt.% rGO content, 0.4 g L-1 rGO/TiO2 content, pH 6, and 60 mg L-1 MB concentration. The photocatalytic degradation mechanism involved immediate oxidative degradation and the combined action of O-2(center dot-), OH(center dot), and h(+) species. The degradation kinetic of the nanocomposites for MB followed a first-order model under UV irradiation.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Materials Science, Multidisciplinary
M. Jarvin, S. Ashok Kumar, G. Vinodhkumar, E. Manikandan, S. S. R. Inbanathan
Summary: The Hausmannite manganese oxide/reduced graphene oxide (Mn3O4-rGO) nanocomposite was synthesized using solvothermal method and characterized for its structural, morphological, and optical properties. The nanocomposite exhibited high photocatalytic activity in the degradation of methylene blue dye under sunlight, showing higher efficiency compared to pristine Mn3O4 and rGO materials.
Article
Chemistry, Physical
Zhibing Xu, Nian Liu, Qixin Wei, Haijun Liu, Pengfei Zhang, Yi Han
Summary: A facile approach to fabricate Ag3PO4@resin core-shell composite microspheres as visible-light-driven photocatalyst has been successfully established. The composite microspheres showed good potential in degrading methylene blue and phenol under visible light irradiation, while reducing their toxicities to soil microorganisms. The high decoloring efficiency of the prepared microspheres in degrading methylene blue solution highlights their promising application in environmental remediation.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Chemistry, Physical
Niandan He, Zongxue Yu, Guangcheng Yang, Qiuyue Tan, Qingcan Xiang, Yucheng Liu
Summary: This study modified silver phosphate grown on top of fibrous sepiolite with lanthanum ferrite using a simple hydrothermal method. The constructed Z-scheme heterojunction effectively improved the deficiencies of the monolithic material. The composite LAE11 showed excellent performance in the adsorption and photocatalytic degradation of a wide range of antibiotics.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Engineering, Environmental
Xiaoqian Wei, Fang Yu, Jiawei Ji, Yandi Cai, Weixin Zou, Yulin Zheng, Jinsheng Huang, Yue Zhang, Yicheng Yang, Mu. Naushad, Bin Gao, Lin Dong
Summary: The combination of bamboo biochar and Ag3PO4 photocatalyst enhanced the degradation efficiency of methylene blue. The porous structure of bamboo biochar facilitated the dispersion of catalyst particles and absorption of more visible light, leading to increased production of center dot OH radicals for photocatalytic reactions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Y. Yang, H. Wang, Y. Zhao, B. Xin, B. Jiang
Summary: In this study, a stable sheet-like carbon quantum dots/poly-p-phenylenediamine (CQDs/PpPD) nanophotocatalyst with excellent photocatalytic performance was prepared using glucose and p-phenylenediamine as raw materials via a microwave melting method. The as-prepared CQDs/PpPD exhibited a stable composite structure with spherical CQDs of 2.0-5.0 nm evenly distributed on the surface of sheet-like PpPD. The photocatalytic performance of CQDs/PpPD was significantly improved, achieving a degradation efficiency of 91.8% for 50 ppm rhodamine B within 10 minutes.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Chemistry, Applied
Alireza Ranjbari, Jiyun Kim, Ju Ho Kim, Jihee Yu, Kristof Demeestere, Philippe M. Heynderickx
Summary: The effect of hydrogen reduction on commercial ZnO by introducing oxygen vacancies on the adsorption and photocatalytic degradation of methylene blue was investigated. The results showed that hydrogen reduction increased the concentration of active sites of the photocatalyst, leading to improved adsorption and photocatalytic degradation.
Article
Materials Science, Multidisciplinary
Esraa S. Elmorsy, Wael A. Amer, Ayman Mahrous, Mohamad M. Ayad
Summary: A novel and stable composite material was successfully synthesized and its structural and morphological properties were investigated. The composite exhibited higher light absorption and charge separation capabilities under visible light irradiation, resulting in significant photocatalytic degradation of methylene blue. The composite also maintained its activity after multiple cycles.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Energy & Fuels
Karthigaimuthu Dharamalingam, Subramaniyan Ramasundaram, Vinoth Kumar Ponnusamy, K. Bhuvaneswari, G. Ramalingam, Athinarayanan Balasankar, Sriram Jeyaram, T. Pazhanivel, S. Sasi Florence, Elangovan Thangavel, Tae Hwan Oh
Summary: The nanoflake Mg(OH)(2)-PVA composite demonstrated efficient performance in photocatalytic water treatment, removing organic pollutants and disinfecting bacteria.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Environmental Sciences
Seyyedeh Atefeh Mirsalari, Alireza Nezamzadeh-Ejhieh
Summary: The ternary CdS/AgBr/Ag3PO4 coupled system shows efficient absorption of visible light photons with low photoluminescence intensity and high photocatalytic activity. The photodegradation rate constant of MB is significantly higher than the mineralization rate constant.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Inorganic & Nuclear
Dengdeng Liu, Pengyu Zhu, Li Yin, Xinyu Zhang, Kaijin Zhu, Junhua Tan, Riya Jin
Summary: In this study, Bi2GeO5/Ag3PO4 nano-composites were synthesized and a Bi2GeO5/Ag@Ag3PO4 Z-scheme heterojunction was assembled. Characterization and experiments showed that the catalytic activity of the composites was superior to the individual components, with 0.1Bi2GeO5/Ag3PO4 exhibiting the best photocatalytic efficiency for RhB degradation. The formation of the heterojunction by photocatalytic processes significantly increased the photocatalytic activity and stability.
JOURNAL OF SOLID STATE CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
N. Sudhan, S. K. Rathiha, V Balasubramanian, M. Pandiaraman, D. Aravind, Varagunapandiyan Natarajan, Mohamed A. Ismail, G. Vinodhkumar
Summary: Silver/Zinc Oxide nanocomposites (Ag-ZnO NCs) with varying weight percentages of both Ag and ZnO were studied for their photocatalytic activity. The experiment results showed that the concentrations of Ag and ZnO affected the photocatalytic activity of the nanocomposites, with AZ(1:1) NC achieving the best performance. This study demonstrated the potential application of Ag-ZnO NCs in the remediation of environmental pollutant and treatment of wastewater.
MATERIALS RESEARCH EXPRESS
(2022)
Article
Environmental Sciences
Mahalakshmi Krishnasamy, Ranjith Rajendran, Shanmugam Vignesh, Priyadharsan Arumugam, Barathi Diravidamani, Mohd Shkir, Hamed Algarni
Summary: Among different types of semiconductor photocatalysts, MoS2 hybridized with graphitic carbon heterojunction has shown great potential due to its static chemical properties, suitable band structure, and easy synthesis. The study revealed the physiochemical and surface characterizations of the hybridized heterojunction nanocomposite, with diffused reflectance spectroscopy showing the tailored energy band gap. The efficient electron/hole pair separation, increase in redox species, and utilization of solar range led to greater degradation efficacy of g-C3N4/MoS2 heterojunction.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Physical
Wenjing Tan, Chunmei Gao, Shifeng Ji, Yunqing Xing, Yi Guo, Baogui Liang
Summary: Membrane separation technology is widely used in wastewater treatment due to its cost-effectiveness and productivity. However, organic membrane fouling caused by humic acid is a major barrier to its further development. This study successfully addressed this issue through the production of composite materials and self-cleaning membranes, providing beneficial strategies and solutions for membrane contamination problems.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Qichang Peng, Qingdong Ruan, Bin Wang, Jinyuan Liu, Chao Huang, Xingwang Zhu, Dan Li, Liangliang Liu, Yinchuan Wang, Xiaolin Zhang, Jia Yan, Paul K. Chu, Hui Xu
Summary: The escalating issue of water pollution has led to significant attention in the field of photocatalysis. In this study, OV-Sb2WO6-X photocatalyst with oxygen vacancies was synthesized, which exhibited enhanced charge separation efficiency and improved photocatalytic activity. The introduction of oxygen vacancies was successfully controlled and characterized, and the modified photocatalyst showed superior degradation efficiency for dye wastewater treatment.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Wangcheng Zhang, Cunchuan Zheng, Hu Xie, Weichao Du
Summary: By using a specific curing agent ETB, the problem of dispersion and stability for oily epoxy resin in cement slurry system has been successfully solved. The application of the emulsified curing agent ETB in oilfield cement slurry system shows good rheological performance, resistance to high temperature and high pressure water loss, and corrosion resistance.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
O. I. Krivonos, A. Babenko, O. B. Belskaya
Summary: This study synthesized biochar based on sapropel and investigated the effects of chemical modification on its textural characteristics, acid-base properties, and adsorption properties. The results showed that the chemical modification increased the fraction of micropores, specific surface area, and changed the surface properties of biochar. The experiment also revealed that biochar pretreated with alkali exhibited the maximum adsorption capacity for copper ions. A conceptual model identifying the mechanisms of copper adsorption on sapropel-based biosorbent was proposed.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
H. Lachhab, N. Benzbiria, A. Titi, S. Echihi, M. E. Belghiti, Y. Karzazi, A. Zarrouk, R. Touzani, C. Jama, F. Bentiss
Summary: The corrosion inhibitory potency of two new pyrimidine-pyrazole derivatives, PPA and PPC, was evaluated for mild steel in 1 M HCl. The results showed enhanced inhibition activities with increased concentration, reaching maximal values of 91.15% and 92.39% for PPA and PPC, respectively. However, the mitigation potency decreased with increasing temperature. SEM and XPS analysis revealed that PPA and PPC adsorbed on the mild steel surface, forming a shielding layer that prevented the dissolution of the steel in the acidic solution.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Shanmugapriya Sivalingam, D. Jeya Sundara Sharmila, Goutham Golla, Lakshmanan Arunachalam, Tarunendu Singh, G. Karthikeyan, A. Shanthi, Kannan Malaichamy
Summary: This study aims to develop a nano-biofungicide comprising of volatile essential oil molecules to enhance its efficacy in the field of agriculture through easily scalable green synthesis technique. The nano biofungicide was prepared through one pot hot melt ultrasonication technique with easy water dispersibility and long term stability. The physico-chemical analysis revealed that, nano bio-fungicides were amorphous sphere-shaped nanoparticles with low melting point. The encapsulation efficiency of major components of essential oil was determined, and it was found that they followed Higuchi model of release kinetics. The essential oil loaded nanostructured lipid carrier showed significantly higher mycelial growth inhibition compared to pure essential oil, indicating enhanced bio-efficacy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Yinlong Li, Yingqing Zhan, Yiwen Chen, Hongshan Jia, Ximin Chen, Fei Zhu, Xulin Yang
Summary: In this study, ZnO quantum dots decorated MXene nanosheets were used as a functional filler for waterborne epoxy coating. The improved dispersion and synergy of ZnO QDs and MXene nanosheets enhanced the anticorrosion performance of the coating.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Fucheng Guan, Jing Tao, Qiang Yao, Zheng Li, Yihang Zhang, Shi Feng, Jianbin Sun, Qiang Yang, Xuecui Song, Jing Guo, Yuanfa Liu
Summary: This paper presents a method for preparing adsorbent materials based on biomass that can efficiently adsorb methylene blue. The experimental results show that the material has a hierarchical structure, high adsorption capacity, and reusability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Pengfei Hu, Zuli Mo, Weiliang Wang, Chengzhe Li, Zhaojia Guo, Guanqing Lin, Zhimin Guo
Summary: This study developed a novel in-situ particle vision and measurement (PVM) system to investigate heterocoagulation between coarse and fine particles in mineral processing. The experimental results showed that the degree of heterocoagulation decreased with increasing pH and stirring speed. Furthermore, under certain hydrodynamic conditions, coal particles were more distributed at the rear of the glass bead.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Tanveer ul Haq Zia, Anwar ul Haq Ali Shah, Behisht Ara, Kashif Gul
Summary: A label-free immunosensor for detection of hepatitis C core antigen was fabricated using a ternary nanocomposite based on polypyrrole, silver doped zinc oxide, and exfoliated graphene. The immunosensor demonstrated low detection limit, high selectivity, and stability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Xiaoyan Feng, Jiachen Li, Lijun Liang, Linli Zhu, Sa Liu, Li Ren
Summary: In this study, polystyrene divinylbenzene microspheres were surface-modified by poly(carboxybetaine methacrylate) to develop an efficient hemoperfusion adsorbent for the removal of protein-bound toxins. The modified microspheres showed increased adsorption capacity and better biocompatibility, making them promising for clinical hemoperfusion therapy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Xiaoye Bi, Dong Xue, Yunpeng Wang, Chencheng Lv, Zexiong Li, Tao Zhao
Summary: This research aimed to develop a durable and formaldehyde-free flame retardant treatment for cotton fabrics. The results demonstrated successful grafting of phosphorous acid (PA) onto cotton fabrics, leading to enhanced flame resistance while maintaining the desired fabric characteristics.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Ruolin Wang, Wenjuan Sun, Haisheng Han, Dongping Tao
Summary: This study finds that Al-starch colloidal depressants can effectively inhibit the flotation of ultrafine calcite and chlorite, and increase the grade of valuable minerals. The chemisorption of Al-starch on mineral surface changes the functional group peaks and generates new O-Al functional groups.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Wondimu K. Wakejo, Ali Maged, Beteley T. Meshesha, Joon W. Kang, Abayneh G. Demesa, Sandip Chakrabarti, Thallada Bhaskar, Ashok Kumar Gupta, Amit Bhatnagar
Summary: Simultaneously removing different pharmaceutical pollutants from wastewater is an important environmental issue, and the use of a system that can remove multiple contaminants at once is necessary. Functionalized biochar (FBC) has been found to be effective in simultaneously removing acetaminophen and ciprofloxacin and other pharmaceutical pollutants.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Yu Wang, Fengwen Yan, Jie Wu, Zhijun Huang, Liuting Song, Shunda Yuan
Summary: In this study, Cu single atoms are anchored on the external surface of g-C3N4 nanofibers to maximize atom utilization. This catalyst exhibits excellent Fenton-like catalytic activity and good stability due to the full utilization of Cu active sites.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)