Correction to: Hexavalent chromium adsorption onto environmentally friendly mesquite gum-based polyurethane foam (Biomass Conversion and Biorefinery, (2024), 14, 13, (15021-15036), 10.1007/s13399-022-03528-4)

• Published in: Biomass Conversion and Biorefinery
• Main Author: Sasidharan V.; Georgin J.; Franco D.S.P.; Meili L.; Singh P.; Jawad A.H.; Selvasembian R.
• Format: Erratum
• Language: English
• Published: Springer Science and Business Media Deutschland GmbH 2024
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85145571453&doi=10.1007%2fs13399-022-03703-7&partnerID=40&md5=4e53ea0a5c6d879cad3462097ffea091

The authors regret the mistake due to the omission of two references works carried out by Acuña et al. [1] and Ranote et al. [2]. 2.2. Preparation of adsorbents Crude Mesquite gum was purified based on the reported procedure by Acuña et al. [1] and Ranote et al. [2]. The samples of gum were subjected to drying at 80°C for 120 min and powdered through mortar and pestle. The obtained powdered gum was used further by dissolving 10.0 g in 250 mL of deionized water along with 10% of acetone. The mixture is allowed for mixing using a stirrer and results in the precipitation of pure gum. The obtained pure gum was a second time treated with 100 mL acetone. Finally, the pure gum obtained as precipitates was washed and dried. The resultant 5 g of purified gum acts as the source of bio-polyol, which was transferred into 5 mL of deionized water followed by 0.05 g DABCO, 0.06 g silicone oil, and 0.1 g Sargassum under the condition of constant stirring. The content was treated with the gradual addition of 1.5 g MDI associated with high stirring. These follow the foam formation with rapid solidification in the form of MG-PUF and Sa-MG-PUF, which were washed using deionized water and oven-dried at 60°C for 24 h, and used as adsorbents. These adsorbent performances were compared with commercial polyurethane form (CPF) adsorbents. The authors would like to apologize for any inconvenience caused. The original article has been corrected. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2022.