“…Adsorption is getting attention in the reduction of dye concentration from wastewater since it is economically feasible, environment‐friendly, efficient with no secondary pollution (Zhang et al., 2022), simple design, and ease of operation (Ahmad & Alrozi, 2010). Based on the literature, many studies have developed biochar from agricultural wastes like peanut‐hull (Zhong et al., 2012), mangosteen peel (Ahmad & Alrozi, 2010), stink bean (Lai, 2021), green seaweed (Gokulan et al., 2020), pomegranate fruit peel (Ahmad et al., 2020), guava leaf (Debamita et al., 2020), and Thuja Orientalis leaves (Arya et al., 2020) to be used as adsorbent to remove RBB dyes from water.…”