Article
Environmental Sciences
Vu Quang Hieu, Thanh Khoa Phung, Thanh-Quang Nguyen, Afrasyab Khan, Van Dat Doan, Vy Anh Tran, Van Thuan Le
Summary: Photocatalytic activity is an effective solution to address environmental pollution caused by industrial pollutants. The Ti3C2-TiO2 composite, with its unique structure, enhances the efficiency of organic dye degradation and exhibits good stability.
Article
Chemistry, Inorganic & Nuclear
Ning Wang, Zhentao Zhao, Lin Liu, Jinjuan Xing
Summary: Metal oxide semiconductor, particularly titanium dioxide (TiO2), is widely used in photocatalytic treatment of dye wastewater, but faces challenges such as low sunlight utilization and fast recombination of electron-hole pairs. Through synthesizing muscovite supported TiO2 with tungsten dopant, this study achieved improved separation efficiency of photoinduced carriers and enhanced photocatalytic activity, providing a novel strategy for preparing efficient and stable TiO2-based photocatalytic materials.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Biotechnology & Applied Microbiology
Md Rashid Al-Mamun, Md Nafiul Karim, Naufida Afroj Nitun, Shahina Kader, Md Shahinoor Islam, Md Zaved Hossain Khan
Summary: The nanocomposites of TiO2 photocatalyst doped with graphene oxide (GO) and silver (Ag) nanoparticles show higher performance in the removal of organic dyes, with great potential for sustainable management of textile wastewater under solar irradiation. The photocatalytic efficiency is enhanced by the addition of oxidant H2O2, and the time-dependent degradation of dye is best fitted with the experimental data.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Materials Science, Multidisciplinary
Shengrong Liang, Mingze An, Sainan Xia, Bingbing Zhang, Bin Xue, Guomin Xu
Summary: In this study, corn straw biochar (BC) was prepared by high-temperature pyrolysis and titanium dioxide/biochar composites (TiO2/BC) were prepared by ultrasonic assisted vacuum impregnation. The TiO2/BC(650) composite exhibited good crystal structure and larger specific surface area compared to pure TiO2. It showed improved band edge absorption and excellent light absorption properties. The photocatalytic degradation performance of the TiO2/BC composites, particularly TiO2/BC(650), was evaluated and found to have a high photocatalytic activity in the removal of the simulated organic pollutant.
Article
Chemistry, Physical
Lu Chen, Wenqian Zhang, Junfeng Wang, Xiaojing Li, Yi Li, Xin Hu, Leihong Zhao, Ying Wu, Yiming He
Summary: In this work, an Ag/Bi5O7I nanocomposite was prepared and used for the piezo/photocatalytic reduction of N2 to NH3 and methyl orange degradation for the first time. The addition of Ag nanoparticles to the Bi5O7I nanorods enhanced the spatial separation of charge carriers and improved the catalytic performance. Under ultrasonic vibration, the optimal Ag/Bi5O7I catalyst exhibited high efficiency in MO degradation and piezocatalytic N2 fixation. Additionally, simultaneous ultrasonic vibration and light irradiation further improved the performance. However, the weak adhesion of Ag nanoparticles resulted in their detachment under long-term ultrasonic vibration, leading to a reduction in the catalytic performance.
GREEN ENERGY & ENVIRONMENT
(2023)
Article
Materials Science, Multidisciplinary
Jia You, Liyuan Zhang, Lihua He, Bingqing Zhang
Summary: ZnO-TiO2/SO42- (ZTOS) heterojunction composites were prepared using an inorganic precipitation-peptization method, exhibiting enhanced photocatalytic activity and stability. The molar ratios of Zn : Ti were found to significantly influence the performance. The heterojunction structure of ZnO-TiO2 provided stronger light absorption and efficient charge separation.
Article
Chemistry, Physical
Yu Liang, Wei Li, Baohui Bei, Chong Li, Zetian He, Xuan Wang, Run Zhou, Hao Ding, Shu Li
Summary: A series of TiO2 pillared sericite nanocomposites were prepared and their structure and properties were studied. The best photocatalytic properties were observed in the TiO2 pillared sericite composite calcined at 800 degrees C. Trapping experiment revealed the participation order of active species during the photodegradation process. Sericite enhances the photocatalytic activity of TiO2 pillared sericite nanocomposite. Sericite shows promise as a substrate in the field of photocatalysis due to its good photocatalytic activity, availability, and recyclability.
APPLIED CLAY SCIENCE
(2023)
Article
Chemistry, Physical
Luminita Predoana, Elena Madalina Ciobanu, Gabriela Petcu, Silviu Preda, Jeanina Pandele-Cusu, Elena Maria Anghel, Simona Viorica Petrescu, Daniela Cristina Culita, Adriana Baran, Vasile-Adrian Surdu, Bogdan Stefan Vasile, Adelina C. C. Ianculescu
Summary: The tin-doped TiO2 powders were synthesized using sol-gel and microwave-assisted sol-gel methods, with different amounts of SnO2 precursor. The structure and morphology of the annealed nanopowders were characterized using various techniques. The Sn-doped materials showed high photocatalytic efficiency for the removal of methyl orange dye from aqueous solutions, with a degradation efficiency of around 90% after 3 hours of UV light irradiation.
Article
Multidisciplinary Sciences
Saade Abdalkareem Jasim, Indrajit Patra, Ahmed M. Abdulhadi, Moaed E. Al-Gazally, Himanshu Sharma, Taif Alawsi, Halah T. Mohammed, Shaymaa Abed Hussein, Usama S. Altimari, Ali Thaeer Hammid, Cui Chem
Summary: The magnetic nanocomposite CeO2/SrFe12O19, prepared by a one-step chemical co-precipitation with high-temperature sintering method, exhibited excellent magnetic properties and photocatalytic degradation activity. It showed high magnetic performance suitable for separation, recycling, and reuse without secondary pollution. Additionally, it demonstrated superior photocatalytic performance in the degradation of methyl orange dye under UV light.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2022)
Article
Chemistry, Physical
Victor Ruiz-Santoyo, Virginia F. Maranon-Ruiz, Rafael Romero-Toledo, Oscar Arturo Gonzalez Vargas, Alejandro Perez-Larios
Summary: The study synthesized ZrO2-doped TiO2 photocatalysts and characterized them using various techniques. It was found that the ZrO2-doped TiO2 exhibited higher photocatalytic activity compared to pure TiO2 and commercial P25. The differences in degradation behavior were attributed to textural properties and structural defects caused by Zr4+ ion doping into the TiO2 lattice.
Article
Chemistry, Multidisciplinary
Yuecheng Bian, Ganhong Zheng, Wei Ding, Lin Hu, Zhigao Sheng
Summary: This study found that a relatively lower magnetic field can enhance the photodegradation efficiency of commercial TiO2, while a higher magnetic field may suppress the efficiency slightly. The magnetic field effect is also dependent on the settling state of the reaction solution, and it is a ubiquitous phenomenon in the photocatalytic degradation process.
Article
Chemistry, Multidisciplinary
Sunil Rohilla, Ankita Gupta, Vibhor Kumar, Suman Kumari, Michal Petru, Nesrine Amor, Muhammad Tayyab Noman, Jasvir Dalal
Summary: The photocatalytic activity of eco-friendly zinc oxide doped silica nanocomposites was investigated at different annealing temperatures, with the sample annealed at 300 degrees Celsius showing the highest photo-degradation ability. The degradation ability decreases with higher annealing temperatures, and there is a positive correlation between the degradation ability and the concentration of sodium hydroxide.
Article
Water Resources
Ahmed S. El-Shafie, Maha Abouseada, Marwa El-Azazy
Summary: In this study, pistachio nutshells-derived biochar was utilized as a cost-effective adsorbent for efficiently removing methyl orange dye from wastewater. The morphology, stability, and structure of the biochar and its TiO2 functionalized form were extensively analyzed using various characterization techniques. It was found that the TiO2 functionalized biochar exhibited a synergistic photocatalytic-adsorptive efficiency in dye removal. The experimental results showed that the TiO2 functionalized biochar achieved a higher removal rate compared to adsorption alone.
APPLIED WATER SCIENCE
(2023)
Article
Chemistry, Applied
Pilar Gomez-Rodriguez, Paola Calza, Debora Fabbri, Claudio Medana, Rafael van-Grieken, Maria-Jose Lopez-Munoz
Summary: The photocatalytic decomposition of methylisothiazolinone (MIT) in water was achieved using TiO2 and TiO2/persulfate systems under simulated solar irradiation. The synthesized TiO2 catalysts were characterized by XRD, SEM, and N2 adsorption-desorption isotherms. The photocatalytic activity of the catalysts for MIT degradation was found to depend on the water provision method and calcination temperature. Addition of persulfate enhanced the MIT degradation rate due to a synergistic effect between the titania catalysts and PS activation. The complete mineralization and non-toxicity of the water solution after photocatalytic treatment were confirmed by TOC and toxicity measurements.
Article
Materials Science, Multidisciplinary
Vy Anh Tran, Thanh Khoa Phung, Van Thuan Le, The Ky Vo, Tan Tai Nguyen, Thi Anh Nga Nguyen, Dinh Quoc Viet, Vu Quang Hieu, Thu-Thao Thi Vo
Summary: In this study, in-situ CoZn-MOF nanoparticles were converted into Co3O4-ZnO nano-size by calcination. The photocatalytic activity of Co3O4-ZnO NPs was demonstrated by the complete degradation of methyl orange under solar light. The catalyst showed significant stability and recyclability for four catalytic cycles.
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)