An overview on cellulose-supported photocatalytic materials for the efficient removal of toxic dyes

Industrial Crops and Products, Journal Year: 2023, Volume and Issue: 202, P. 117000 - 117000

Published: July 5, 2023

Language: Английский

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Recent Advances in Various Starch Formulation for Wastewater Purification via Adsorption Technique: A Review

Journal of Polymers and the Environment, Journal Year: 2023, Volume and Issue: 31(7), P. 2792 - 2825

Published: March 8, 2023

Abstract Water purification is considered one of the most essential issues in our lives. Therefore, contamination water surfaces owing to hasty upsurge industrialization has received great global attention because its potential danger human health and eco-system. Particularly, discharge various non-biodegradable contaminants into body—heavy metal ions, organic dyes, pharmaceutical antibiotics, pesticides, oils—causes these accumulate on water's surface have harmful impacts humans environment. Several conventional methods can be applied solve this problem, including chemical oxidation, precipitation, coagulation, so on. However, they suffer from serious limitations: high cost, limited functionality, prolonged heavy energy use, poor separation efficiency. Conversely, adsorption technique recently attracted a lot for wastewater treatment thanks remarkable benefits being simple, highly selective, low-cost technique. Recently, natural polysaccharides (especially starch)-based adsorbents interest their outstanding properties, easily available, non-toxic, low-cost, biodegradable, biocompatible. it possesses notable drawbacks that prevent used alone as an adsorbent treatment, low thermal stability, slight solubility, rapid degradability water. review highlights comprehensive presentation about starch modifications: starch-based grafts, hydrogels, aerogels, beads, nanofibers, nanocomposite formulations remove several toxic contaminants, oils.

Language: Английский

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Applications of graphene oxide (GO) in oily wastewater treatment: Recent developments, challenges, and opportunities

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 353, P. 120178 - 120178

Published: Feb. 1, 2024

The treatment of oily wastewater has become a serious environmental challenge, for which graphene oxide emerged as promising material in solving the problem. ever-growing utilization (GO) necessitates constant review. This review article employs comprehensive literature survey methodology, systematically examining peer-reviewed articles, focusing on, but not entirely limited to, last five years. Major databases such EBSCOhost, Scopus, ScienceDirect, Web Science and Google Scholar were searched using specific keywords related to GO treatment. inclusion criteria focused on studies that specifically address application, efficiency, mechanisms treating wastewater. data extracted from these sources then synthesized highlight most important developments, challenges, prospects this field. As far is concerned, majority revolve around use mitigating fouling membrane processes, improving stability, capacity reusability sorbents, enhancing photodegradation by minimizing charge recombination.

Language: Английский

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Synthesis of Hybrid/Superhydrophobic Coupling Agent Grafted Nano SiO2 and Its Use in Fabrication of Rubber Nanocomposite with Outstanding Oil/Water Separation Capability

Results in Engineering, Journal Year: 2024, Volume and Issue: 22, P. 102270 - 102270

Published: May 15, 2024

Design and synthesis of a new sorbent with high performances oil-water separation is one the challenges to world community. Herein, superhydrophobic/novel coupling agent (NCA) containing several vinyl groups was synthesized. Also, isocyanate (VI) tetraethoxysilane (TEOS) reacted synergetic strategy crosslinked networks through click reaction under N2 gas atmosphere. 1H-NMR FTIR analyses confirmed formation NCA SiC10H18O6N2 chemical formula. Then, grafted on nanoparticles at different amounts by sol-gel method. It found that surface modification enhanced water contact angle (WCA) from 60° 163°. In following, without were applied contents tire rubber compound. The uniform dispersion/distribution nano fillers in polymer matrix strong filler-polymer interactions crosslink density improved mechanical sample. prepared nanocomposites tested against absorption oils. results showed superior nanocomposite modified (i.e. TR-TNS5) had efficiency over 90% compared pure TR-NS5) which less than 30%. cycle 95% after addition (from 240 440 cycles). illustrated angles 153.22° 13.34° oil droplets, respectively. rubbery performances.

Language: Английский

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Nature-Inspired Superhydrophobic Coating Materials: Drawing Inspiration from Nature for Enhanced Functionality

Micromachines, Journal Year: 2024, Volume and Issue: 15(3), P. 391 - 391

Published: March 13, 2024

Superhydrophobic surfaces, characterized by exceptional water repellency and self-cleaning properties, have gained significant attention for their diverse applications across industries. This review paper comprehensively explores the theoretical foundations, various fabrication methods, applications, associated challenges of superhydrophobic surfaces. The section investigates underlying principles, focusing on models such as Young’s equation, Wenzel Cassie–Baxter states, dynamics wetting. Various methods are explored, ranging from microstructuring nanostructuring techniques to advanced material coatings, shedding light evolution surface engineering. extensive spanning technologies oil–water separation, systematically discussed, emphasizing potential contributions fields healthcare, energy, environmental protection. Despite promising attributes, surfaces also face challenges, including durability scalability issues, concerns, limitations in achieving multifunctionality, which discussed this paper. By providing a comprehensive overview current state research, aims guide future investigations inspire innovations development utilization these fascinating

Language: Английский

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Incorporation of zwitterionic carbon quantum dots in cellulose acetate tubular membrane for oil/water separation

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 337, P. 126301 - 126301

Published: Jan. 9, 2024

Language: Английский

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Review on the impact of heavy metals from industrial wastewater effluent and removal technologies

Heliyon, Journal Year: 2024, Volume and Issue: 10(23), P. e40370 - e40370

Published: Nov. 15, 2024

The incidence of water pollution in developing countries is high due to the lack regulatory policies and laws that protect bodies from anthropogenic activities industrial wastewater. Industrial wastewater contains significant amounts heavy metals are detrimental human health, aquatic organisms, ecosystem. focus this review was evaluate sources treatment methods wastewater, with an emphasis on technologies, advantages, disadvantages, innovation. It observed conventional (such as flotation, coagulation/flocculation, adsorption) had shown promising results but posed certain limitations, such generation volumes sludge, relatively low removal rates, inefficiency treating metal concentrations, sensitivity varying pH. Recent technologies like nanotechnology, photocatalysis, electrochemical coagulation have advantages over for removing metals, including higher improved energy efficiency, greater selectivity specific contaminants. However, costs associated these advanced remain a major drawback. Therefore, we recommend future developments technology reducing both waste generation.

Language: Английский

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Evaluation of the risk of pollution caused by ship operations through bow-tie-based fuzzy Bayesian network

Journal of Cleaner Production, Journal Year: 2022, Volume and Issue: 382, P. 135386 - 135386

Published: Nov. 30, 2022

Language: Английский

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Experimental Study of Oil Non-Condensable Gas Pyrolysis in a Stirred-Tank Reactor for Catalysis of Hydrogen and Hydrogen-Containing Mixtures Production

Energies, Journal Year: 2022, Volume and Issue: 15(22), P. 8346 - 8346

Published: Nov. 8, 2022

The present study is focused on improving the technology for deep oil sludge processing by pyrolysis methods, considered to be most promising their environmentally friendly utilization, in which a significant yield of fuel products expected. developed authors this two-stage process. first stage, sludge, was investigated previous papers. A non-condensable gases obtained. This paper presents second stage complex technology—pyrolysis (purified propane) using stirrer with help experimental setup. expected benefit improved heat transfer due circumferential and radial-axial circulation gas flow. effect final target decomposition products—H2-containing mixtures H2 generated during non-catalytic (medium-temperature) catalytic obtained are estimated. Ni catalyst used pyrolysis. shows that application leads increasing H2-containing concentrations. In particular, whole reaction time (10 h), average concentration increased ~5.3%. case, optimum produce 4 h. peak at temperature 590 ± 10 °C was: 66.5 vol. % versus 62 without an error ±0.4 %. further increase cost-effective order obtain mixtures.

Language: Английский

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Biosurfactants as Multifunctional Remediation Agents of Environmental Pollutants Generated by the Petroleum Industry

Energies, Journal Year: 2023, Volume and Issue: 16(3), P. 1209 - 1209

Published: Jan. 22, 2023

Fuel and oil spills during the exploration, refining, distribution of petrochemicals are primarily responsible for accumulation organic pollutants in environment. The reduction contamination caused by hydrocarbons, heavy metals, oily effluents, particulate matter generated industrial activities efficient recovery at great depths an environmentally friendly way pose a challenge, as cleaning processes require direct application surface-active agents, detergents, degreasers, or solvents, often generating other environmental problems due to toxicity these substances. Thus, natural agents is attractive solution. Due their amphipathic structures, microbial surfactants solubilize through formation small aggregates (micelles) that disperse water, with numerous applications petroleum industry. Biosurfactants have proven usefulness solubilizing trapped rock, which prerequisite enhanced (EOR). also important biotechnological anti-corrosion processes, preventing incrustations biofilms on metallic surfaces, used formulations emulsifiers/demulsifiers, facilitate transport pipelines, innovative use can reduce generation from synthetic detergents chemical solvents without sacrificing economic gains Therefore, investments essential. It predicted that, not-too-distant future, will become viable standpoint dominate world market. biosurfactants settings would lead growth sustainability. main goal this paper provide overview diverse remediation, biotechnology, industry scientific literature review.

Language: Английский

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