Article
Chemistry, Physical
Sivakumar Bose, Muthuchamy Maruthupandy, Wan-Seob Cho, Hyun Wook Kang
Summary: This study synthesized CuxFeSx derivatives using different solvents and investigated their photocatalytic activity towards Direct Red 80 (DR-80) and safety in human cell lines. The results showed that CuxFeSx-Et exhibited the highest photocatalytic efficiency and recyclability, and it was non-toxic to human cell lines. This study provides new insights into the benign-by-design of CuxFeSx as photocatalysts for dye degradation.
SURFACES AND INTERFACES
(2023)
Article
Spectroscopy
Muthuchamy Maruthupandy, Thillaichidambaram Muneeswaran, Thirumalaiswamy Vennila, Muthusamy Anand, Wan-Seob Cho, Franck Quero
Summary: Chitosan/Fe3O4 nanospheres exhibit significantly improved photocatalytic activity against CR dye molecules under visible light compared to Fe3O4 nanospheres.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Review
Environmental Sciences
Rana Rashad Mahmood Khan, Hoorish Qamar, Ayesha Hameed, Aqmar ur Rehman, Muhammad Pervaiz, Zohaib Saeed, Aqib Adnan, Ayoub Rashid Ch
Summary: Technological advancement has led to significant environmental changes, with industries directly releasing pollutants into the environment. This review article focuses on the photodegradation of the prominent Azo dye, Congo red, in wastewater from textile industries. Both biological and chemical methods, employing microorganisms and nanoparticles respectively, are being investigated for Congo red degradation. The use of nanoparticles for dye photodegradation is preferred due to the absence of polycyclic compounds after degradation. Nanoparticles that can be easily separated have shown promising photocatalytic properties, with Gd3+ doped cobalt ferrite nanoparticles enhancing the degrading capability of nanocatalysts.
WATER AIR AND SOIL POLLUTION
(2022)
Article
Multidisciplinary Sciences
G. Murugadoss, D. Dinesh Kumar, M. Rajesh Kumar, N. Venkatesh, P. Sakthivel
Summary: High quality silver (Ag) decorated CeO2 nanoparticles were prepared by a facile one-step chemical method and used as a catalyst for degrading harmful textile pollutant Rose Bengal dye under sunlight with a high efficiency of 96% degradation rate after 3 hours. The enhancement in degradation efficiency was mainly attributed to the decrease in band gap and charge carrier recombination rate, with a possible degradation mechanism proposed based on the generation of oxygen vacancies due to the decoration of Ag on the CeO2 surface.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Inorganic & Nuclear
Ntakadzeni Madima, Kebede K. Kefeni, Shivani B. Mishra, Ajay K. Mishra, Alex T. Kuvarega
Summary: This study successfully synthesized magnetic Fe3O4/TiO2 nanocomposites as efficient and recyclable photocatalysts for degrading rhodamine B pollutants under simulated solar light. By optimizing factors such as Fe3O4 loading, photocatalyst properties, and reuse cycles, the photocatalytic activity and stability were improved.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Hanan A. Albalwi
Summary: This study aimed to investigate the degradation of Direct Red 83 dye using Ca-ALG/MgO/Ag nanocomposite beads as a catalyst. The formation of nanocomposite beads was confirmed by various analyses. The effects of different operating parameters were carefully studied to find the optimum degradation conditions. The results showed that the Ca-ALG/MgO/Ag nanocomposite beads were efficient for the degradation of Direct Red 83 dye, achieving a degradation efficiency of approximately 95%.
Article
Chemistry, Multidisciplinary
Jinwon Kim, Hee-Jong Yang, Gwangsu Ha, Sua Im, Su-Jin Shin, Seong-Yeop Jeong, Do-Youn Jeong
Summary: Lactobacillus paracasei SRCM 208836 biomass exhibited a high biosorption capacity for Congo red dye and alleviated its toxicity on the growth of Brassica juncea.
SEPARATION SCIENCE AND TECHNOLOGY
(2022)
Article
Water Resources
Mohammed T. M. H. Hamad, Mona S. S. Saied
Summary: The study evaluated the biodegradation and detoxification of Congo red dye by immobilized Aspergillus niger, showing that the fungus could effectively remove the dye from wastewater while reducing its toxicity in the process. The results also demonstrated the reusability of the immobilized fungus, making it a promising adsorbent for dye removal.
APPLIED WATER SCIENCE
(2021)
Review
Chemistry, Inorganic & Nuclear
Muhammad Farooque Lanjwani, Mustafa Tuzen, Muhammad Yar Khuhawar, Tawfik A. Saleh
Summary: The development of the textile industry has raised concerns due to the contamination of drinking water by organic dyes, which pose a carcinogenic risk to humans. Nanomaterials, particularly semiconductors, have been utilized for photocatalytic degradation of dye pollutants. Various parameters, such as catalyst dosage, irradiation time, light sources, initial dye concentration, temperature, and pH, play significant roles in the degradation process. Different generations of photocatalytic nanomaterials, including single metal nanoparticles, binary and ternary metal oxides, as well as inert solid substrates with photocatalysts, have been employed for dye degradation.
INORGANIC CHEMISTRY COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Li Sun, Quan Zhou, Jiaheng Mao, Xingyu Ouyang, Zhigang Yuan, Xiaoxiang Song, Wenbang Gong, Shunqi Mei, Wei Xu
Summary: Water pollution can be treated through the photocatalytic reaction of TiO2 or TiO2 compounds. In this study, Fe3O4 and Fe3O4@TiO2 composite photocatalysts were prepared using a solvothermal method, and it was found that Fe3O4@TiO2 can reduce the band gap and maintain a certain proportion of high-energy facet exposure. The photocatalytic degradation experiment demonstrated that Fe3O4@TiO2 can significantly improve the degradation efficiency of Acid Red 73 and achieve higher degradation rate after self-cleaning treatment.
APPLIED SCIENCES-BASEL
(2022)
Article
Engineering, Electrical & Electronic
Ala Manohar, Krishnamoorthi Chintagumpala, Ki Hyeon Kim
Summary: A study was conducted on narrow size distributed ZnxFe3-xO4 nanoparticles synthesized by solvothermal reflux method. The nanoparticles showed interesting electrical, magnetic and catalytic properties, contributing to potential applications in superparamagnetic hyperthermia and photocatalysis.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Applied
Hanan Albalwi, Faten Ismail Abou El Fadl, Mohamed M. Ibrahim, Manal F. Abou Taleb
Summary: This study successfully degraded the model anionic dye Basic Blue 3 using prepared Ca-alginate/silver (Ca-ALG/Ag) nanocomposite beads as catalyst. The physicochemical properties of the nanocomposite beads were characterized using various techniques, confirming their effectiveness in dye degradation. Different kinetic and isothermal models revealed that the degradation process using Ca-ALG/Ag nanocomposite beads as catalyst best fit the pseudo-second-order kinetic model and Langmuir isotherm model.
APPLIED ORGANOMETALLIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Vrinda S. Punnakkal, E. Anila
Summary: In this study, a simple chemical synthesis method was used to prepare polypyrrole/silver/graphene (Ppy/Ag/Gr) ternary nanocomposites with varying concentrations of graphene. The interaction between polypyrrole, silver, and graphene was studied using XRD, FTIR, and UV-Vis spectroscopies. The results showed that the addition of the optimum concentration of graphene into Ppy/Ag enhanced its photocatalytic property. Furthermore, it was confirmed that the enhancement of photocatalysis in the Ppy/Ag/Gr sample was due to the increased surface area.
SURFACES AND INTERFACES
(2023)
Article
Environmental Sciences
Karuppusamy Indira, Sabarathinam Shanmugam, Anjana Hari, Seerangaraj Vasantharaj, Selvam Sathiyavimal, Kathirvel Brindhadev, Ahmad El Askary, Ashraf i Elfasakhany, Arivalagan Pugazhendhi
Summary: Nickel-titanium dioxide (Ni-TiO2) nanoflakes were synthesized using Mukia maderaspatana leafs in this study, showing potential as efficient photocatalysts for degrading dyes in wastewater under UV illumination.
ENVIRONMENTAL RESEARCH
(2021)
Article
Engineering, Electrical & Electronic
M. Antony Arockiaraj, G. Mani, Zeid A. ALOthman
Summary: The bare iron oxide (IO) and iron oxide/chitosan (IOC) nanocomposites were prepared and characterized. The IOC composites showed high efficiency in removing organic contaminants from wastewater, with over 99% degradation rate for methylene violet (MV) and 71% degradation rate for rhodamine B (RhB).
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Analytical
Fatima Khitab, Jasmin Shah, Muhammad Rasul Jan
Summary: A comparative study of Cu-impregnated ZnO and Ni-impregnated ZnO for the sonophotocatalytic degradation of cefixime in aqueous solution under visible light irradiation was conducted. The sonophotocatalytic efficiency of degradation was found to be superior to photolysis, sonolysis, photocatalysis, and sonocatalysis. Various operational parameters were optimized, and the reusability and settling time of the catalyst were also studied. The proposed method demonstrated good degradation results for both real pharmaceutical wastewater and synthetic samples.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Abida Bano, Fatima Khitab, Rozina Khattak, Shagufta Rasool, Hajera Gul
Summary: In this study, Ni was impregnated into ZnO to enhance its photocatalytic performance in the visible region. The Ni-impregnated ZnO catalyst was successfully synthesized by wet impregnation. The catalyst showed high efficiency in the photocatalytic degradation of dyes under visible light. By optimizing the reaction conditions, high degradation rates were achieved and the degradation of dyes followed pseudo first-order kinetics.
ANALYTICAL LETTERS
(2023)
Article
Environmental Sciences
Toheed Ullah, Hajera Gul, Fatima Khitab, Rozina Khattak, Yousaf Ali, Shagufta Rasool, Muhammad Sufaid Khan, Ivar Zekker
Summary: Sugarcane bagasse is a low-cost and eco-friendly biosorbent for the removal of organic pollutants. In this study, the adsorption behavior of a dye on sugarcane bagasse was investigated and various experimental parameters were optimized. The results showed that the adsorption followed Freundlich adsorption isotherms and the kinetics followed a pseudo-second-order model. Additionally, the technology was found to be effective in treating actual textile waste effluent.
Article
Environmental Sciences
Salma Gul, Mansha Kanwal, Raina Aman Qazi, Hajera Gul, Rozina Khattak, Muhammad Sufaid Khan, Fatima Khitab, Andrey E. Krauklis
Summary: This study demonstrates for the first time that biomass derived from the bark of the Dodonaea viscosa plant can effectively and sustainably remove methyl red dye. The bark shows promising adsorption capacity, especially under acidic conditions. The experimental results suggest that bark powder outperforms other adsorbents such as animal charcoal, silica gel, powdered flowers, and leaves of the same species.
Article
Multidisciplinary Sciences
Malka Saba, Fatima Khitab, Nargis Jamila, Naeem Khan, Farhat Amin, Naheed Bibi, Raina Aman Qazi, Sadiq Noor Khan
Summary: The present study focuses on the synthesis of gold nanoparticles using Chenopodium botrys and Chenopodium ambrosioides, and evaluates their potential as antimicrobial and catalytic agents. The results show that both plant species have high total phenolic and flavonoid content, and the synthesized gold nanoparticles exhibit significant antimicrobial and catalytic activity. This research highlights the therapeutic properties of these plant species and their potential application in wastewater treatment.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2023)
Article
Chemistry, Analytical
Azmat Ali Khan, Fatima Khitab, Jasmin Shah, Muhammad Rasul Jan
Summary: Dyestuffs in wastewater pose a serious threat to human health and the environment. In this study, the sonophotocatalytic degradation of Acid red 17 (AR-17) dye was investigated using silver impregnated zinc oxide (Ag/ZnO) catalyst. The results showed that Ag/ZnO catalyst had a significant degradation effect on AR-17 dye. The degradation efficiency was affected by operating conditions, such as H2O2 concentration, pH of the solution, amount of catalyst, and concentration of AR-17 dye.
ANALYTICAL CHEMISTRY LETTERS
(2022)
Article
Engineering, Chemical
Fatima Khitab, Muhammad Rasul Jan, Jasmin Shah
DESALINATION AND WATER TREATMENT
(2020)
Article
Engineering, Chemical
Fatima Khitab, Muhammad Rasul Jan, Jasmin Shah
DESALINATION AND WATER TREATMENT
(2019)
