Preparation and characterization of sodium lignosulfonate-chitosan hydrochloride composite materials for dye adsorption

IF 4.5 3区工程技术 Q1 CHEMISTRY, APPLIED

Reactive & Functional Polymers Pub Date : 2025-01-08 DOI:10.1016/j.reactfunctpolym.2025.106150

Jianhui Chen , Feng Ma , Yan Qin , Junying Li , Pengfei Yang

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引用次数: 0

Abstract

With the rapid development of industry, dye wastewater increasingly damaged the ecological environment and human health. Therefore, the treatment of wastewater became an urgent environmental issue. In this paper, sodium lignosulfonate was modified with the Reimer-Tiemann reaction and then cross-linked with chitosan hydrochloride to prepare modified sodium lignosulfonate-chitosan hydrochloride (MSL-CHC) composite materials, which were characterized by infrared spectra (FT-IR), scanning electron microscope (SEM), Brunauer-Emmett-Teller (BET) surface area, and X-ray photoelectron spectroscopy (XPS). Then, the adsorption performance of MSL-CHC for Congo red (CR) was investigated under different conditions, including adsorbent dosage, adsorption time, inorganic salt ion species, ionic strength and adsorption temperature. The results showed that the adsorption was consistent with the pseudo-second-order kinetic model, indicating that chemical adsorption was dominant. The adsorption isotherm could be fitted as the Langmuir model, indicating monolayer chemical adsorption. Thermodynamics studies showed that the adsorption of CR was a spontaneous endothermic process. The maximum adsorption capacity for CR was 804.32 mg·g⁻¹. Furthermore, the adsorption capacity of different dyes, as well as the adsorption process in various inorganic salt solution, indicated that MSL-CHC composites had good universality, anti-interference ability and recyclability. The composite materials were environmentally friendly, pollution-free, and easy to obtain, which were ideal bio-based adsorption materials for removing dyes from water.

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来源期刊

Reactive & Functional Polymers 工程技术-高分子科学

CiteScore

8.90

自引率

5.90%

发文量

259

审稿时长

27 days

期刊介绍： Reactive & Functional Polymers provides a forum to disseminate original ideas, concepts and developments in the science and technology of polymers with functional groups, which impart specific chemical reactivity or physical, chemical, structural, biological, and pharmacological functionality. The scope covers organic polymers, acting for instance as reagents, catalysts, templates, ion-exchangers, selective sorbents, chelating or antimicrobial agents, drug carriers, sensors, membranes, and hydrogels. This also includes reactive cross-linkable prepolymers and high-performance thermosetting polymers, natural or degradable polymers, conducting polymers, and porous polymers. Original research articles must contain thorough molecular and material characterization data on synthesis of the above polymers in combination with their applications. Applications include but are not limited to catalysis, water or effluent treatment, separations and recovery, electronics and information storage, energy conversion, encapsulation, or adhesion.

文献相关原料

公司名称

产品信息

阿拉丁

Congo red

阿拉丁

Chitosan hydrochloride

阿拉丁

Sodium lignosulfonate

阿拉丁

methyl orange

阿拉丁