Preparation of wood-based hydrogel membranes for efficient purification of complex wastewater using a reconstitution strategy
Qian He , Junkai Gao , Zhongzhi Chen , Yuanjing Ding , Mengsheng Xia , Pengtao Xu , Yan Chen
Front. Environ. Sci. Eng. ›› 2024, Vol. 18 ›› Issue (7) : 84
Preparation of wood-based hydrogel membranes for efficient purification of complex wastewater using a reconstitution strategy
● Wood powder reconstitution strategy was developed to prepare hydrogel membrane. ● The membrane has the merits of adjustable pore size and superhydrophilicity. ● The reconstitution strategy is environmentally friendly and easy to operate. ● The membrane can purify complex wastewater and has excellent anti-fouling property. ● This study opened up a new strategy for the recycling of waste wood powder.
To avoid resource wastage and secondary environmental pollution, recycling and reusing waste wood powder is still a great challenge. Moreover, the poor viscosity and irregular pore size of wood powder limit its practical application. This study employed a green and convenient wood powder reconstitution strategy to achieve highly adhesive bonding and pore size control between wood powder particles, thus preparing a high-strength and super hydrophilic wood powder membrane. The wood powder fibers were partially dissolved and regenerated to create a reconstituted wood powder hydrogel membrane, using waste wood powder as the raw material. The wood powder reconstitution strategy offers advantages such as environmental friendliness, simplicity, cost-effectiveness, and strong universality. Furthermore, the materials exhibit excellent self-cleaning properties and superhydrophilicity. Driven by gravity, the membrane can purify oily wastewater and dyes. Additionally, the reconstitution strategy offers a new pathway for recycling wood powder.
Wood powder / Reconstitution strategy / Hydrogel membrane / Recycling / Wastewater
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Higher Education Press 2024
Supplementary files
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