In Steven et al,¹ the following sentence in the second to the last paragraph of Introduction should read as follows:

Aside from that, rice husk acid leaching, calcination, and freeze casting which was carried out by Bahrami et al. [24] succeeded in producing an environmentally friendly amorphous silica monolith with 151 m²/g of surface area and crystalline silica monolith with 1.51 m²/g of surface area as further applied for catalyst support or sorption.

The surface area has been corrected accordingly.

In Table 1, reference "Mysen and Richet [18]" should be "Steven et al. [19]". The correct table is shown below:

TABLE 1. State of the arts for silica production from rice husk derivatives

Raw material	Process	Highest yield (%)	Purity (%)	Surface area (m2/g)	Ref.
Rice husk	Acid leaching + calcination + freeze casting	-	-	1.5 (crystalline) 151 (amorphous)	Bahrami et al.24
Rice husk ash (RHA)	Alkaline extraction	65.00	>96	-	Mittal9
	Alkaline extraction	82.00	-	-	Ul-Haq et al.28
	Alkaline extraction	71.15	-	-	Mehta and Ugwekar29
	Alkaline extraction	>90.00	-	-	Todkar et al.21
	Pretreatment + alkaline extraction	91.00	93	-	Kalapathy et al.27
	Acid leaching + alkaline extraction	-	96.44	400.69	Steven et al.19
	Pretreatment + alkaline extraction + various solvent replacement + drying technique	-	>97	322.5	Temel et al.30
	Alkaline extraction + cation exchange + solvent replacement + supercritical drying	-	-	729.89	Cui et al.31
Rice husk black ash (RHBA)	Pretreatment + alkaline extraction + posttreatment (refining)	To be investigated			This study

中文翻译：

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勘误表

在 Steven 等人中，¹引言第二段至最后一段中的以下句子应如下所示：

除此之外，由 Bahrami 等人进行的稻壳酸浸、煅烧和冷冻铸造。^{[24] 成功地生产了具有 151 m 2} /g 表面积的环保无定形二氧化硅整料和表面积为 1.51 m ² /g 的结晶二氧化硅整料，进一步用于催化剂载体或吸附。

相应地修正了表面积。

在表 1 中，参考“Mysen and Richet [18]”应为“Steven et al. [19]”。正确的表格如下所示：

表 1.从稻壳衍生物生产二氧化硅的技术现状

原材料	过程	最高产率 (%)	纯度 (%)	表面积（m 2 /g）	参考。
稻壳	酸浸+煅烧+冷冻铸造	-	-	1.5（结晶） 151（无定形）	巴赫拉米等人。24
稻壳灰 (RHA)	碱提取	65.00	>96	-	米塔尔9
	碱提取	82.00	-	-	Ul-Haq 等人。28
	碱提取	71.15	-	-	Mehta 和 Ugwekar 29
	碱提取	>90.00	-	-	托德卡等人。21
	预处理+碱提	91.00	93	-	卡拉帕蒂等人。27
	酸浸+碱提	-	96.44	400.69	史蒂文等人。19
	预处理+碱提+各种溶剂置换+干燥技术	-	>97	322.5	特梅尔等人。30
	碱萃取+阳离子交换+溶剂置换+超临界干燥	-	-	729.89	崔等人。31
稻壳黑灰（RHBA）	预处理+碱提+后处理（精炼）	待调查			这项研究