This study investigates Java Plum Leaves Powder (JPLP) as a cost-effective biosorbent for malachite green (MG) removal from water, achieving up to 95% efficiency under optimal conditions: pH 7, 75 min contact time, 30 mg L^-1 initial dye concentration, and 2.5 g L⁻¹ biosorbent dose. SEM and FTIR analyses revealed the biosorbent's detailed morphology and chemistry, highlighting functional groups key to MG adsorption. The Freundlich isotherm model fitting suggests a preference for heterogeneous adsorption sites, supported by kinetic data aligning with a pseudo-second-order model. JPLP demonstrated a high adsorption capacity (140 mg g⁻¹), effective in river and tap water, marking it as a sustainable, affordable solution for dye pollution. This research offers significant insights into dye removal and environmental remediation, establishing JPLP as a viable, eco-friendly alternative for aqueous dye pollution mitigation and a practical option for water purification.

Graphical Abstract

中文翻译：

---

使用爪哇李叶增强吸附去除环境样品中的孔雀石绿：从平衡到机制研究

本研究研究了爪哇梅叶粉 (JPLP) 作为一种经济高效的生物吸附剂，用于去除水中的孔雀石绿 (MG)，在最佳条件下实现高达 95% 的效率：pH 7、接触时间 75 分钟、初始浓度 30 mg L ^-1染料浓度和2.5 g L ^-1生物吸附剂剂量。 SEM 和 FTIR 分析揭示了生物吸附剂的详细形态和化学性质，突出了对 MG 吸附至关重要的官能团。 Freundlich 等温线模型拟合表明对异质吸附位点的偏好，并得到与伪二阶模型一致的动力学数据的支持。 JPLP 表现出高吸附能力（140 mg g ⁻¹），对河流和自来水有效，使其成为一种可持续、经济实惠的染料污染解决方案。这项研究为染料去除和环境修复提供了重要见解，使 JPLP 成为减轻水性染料污染的可行、环保的替代品和水净化的实用选择。

图形概要