[1] [1] CHEN Y, WANG N N, OLA O, et al. Porous ceramics: Light in weight but heavy in energy and environment technologies[J]. Mater Sci Eng R Rep, 2021, 143: 100589.

[2] [2] HUO W L, QI F, ZHANG X Y, et al. Ultralight alumina ceramic foams with single-grain wall using sodium dodecyl sulfate as long-chain surfactant[J]. J Eur Ceram Soc, 2016, 36(16): 4163–4170.

[3] [3] LI X X, YAN L W, GUO A R, et al. Lightweight porous silica–alumina ceramics with ultra-low thermal conductivity[J]. Ceram Int, 2023, 49(4): 6479–6486.

[4] [4] OBADA D O, DODOO-ARHIN D, DAUDA M, et al. Crack behaviour and mechanical properties of thermally treated Kaolin based ceramics:The influence of pore generating agents[J]. Appl Clay Sci, 2020, 194:105698.

[5] [5] ZHU M G, JI R, LI Z M, et al. Preparation of glass ceramic foams for thermal insulation applications from coal fly ash and waste glass[J].Constr Build Mater, 2016, 112: 398–405.

[6] [6] CHAN W H, MAZLEE M N, AHMAD Z A, et al. Effects of fly ash addition on physical properties of porous clay–fly ash composites via polymeric replica technique[J]. J Mater Cycles Waste Manag, 2017,19(2): 794–803.

[7] [7] LI X Y, SHAO J H, ZHENG J Q, et al. Fabrication and application of porous materials made from coal gangue: A review[J]. Int J ApplCeram Technol, 2023, 20(4): 2099–2124.

[8] [8] SAPARUDDIN D I, HISHAM N A N, AZIZ S A, et al. Effect of sintering temperature on the crystal growth, microstructure and mechanical strength of foam glass–ceramic from waste materials[J]. J Mater Res Technol, 2020, 9(3): 5640–5647.

[9] [9] NIU Y H, FAN X Y, REN D, et al. Effect of Na2CO3 content on thermal properties of foam-glass ceramics prepared from smelting slag[J]. Mater Chem Phys, 2020, 256: 123610.

[10] [10] LIU Y, LIAN W, SU W F, et al. Synthesis and mechanical properties of mullite ceramics with coal gangue and wastes refractory as raw materials[J]. Int J Appl Ceram Technol, 2020, 17(1): 205–210.

[11] [11] HUANG Y, HU N Y, YE Y C, et al. A novel route for the fabrication of melilite–spinel porous ceramics with ultralow thermal conductivity and sufficient strength[J]. Ceram Int, 2022, 48(24): 37488–37491.

[12] [12] LI X, PAN M B, TAO M Y, et al. Preparation of high closed porosity foamed ceramics from coal gangue waste for thermal insulation applications[J]. Ceram Int, 2022, 48(24): 37055–37063.

[13] [13] GE X X, ZHOU M K, WANG H D, et al. Effects of flux components on the properties and pore structure of ceramic foams produced from coal bottom ash[J]. Ceram Int, 2019, 45(9): 12528–12534.

[15] [15] ZHANG J J, LIU B, ZHANG S G. A review of glass ceramic foams prepared from solid wastes: Processing, heavy-metal solidification and volatilization, applications[J]. Sci Total Environ, 2021, 781: 146727.

[17] [17] WU C W, LI Z, LI Y, et al. Effect of starch on pore structure and thermal conductivity of diatomite-based porous ceramics[J]. Ceram Int,2023, 49(1): 383–391.

[18] [18] KHATER G A, NABAWY B S, EL-KHESHEN A A, et al. Utilizing of solid waste materials for producing porous and lightweight ceramics[J]. Mater Chem Phys, 2022, 280: 125784.

[19] [19] NEMALEU J G D, à MOUNGAM L M B, KAMGA SAMEN V E L, et al. Low-temperature high-strength lightweight refractory composites:Pore structures and insulating properties[J]. Ceram Int, 2023, 49(14):23510–23521.

[20] [20] RICE R W. Comparison of stress concentration versus minimum solid area based mechanical property–porosity relations[J]. J Mater Sci,1993, 28(8): 2187–2190.

[21] [21] LI C X, ZHOU Y, TIAN Y M, et al. Preparation and characterization of mullite whisker reinforced ceramics made from coal fly ash[J].Ceram Int, 2019, 45(5): 5613–5616.

[22] [22] ZHANG Z, ZHOU W Y, HAN B Q, et al. Preparation and characterization of eco-friendly and low-cost mullite-corundum foamed ceramics with low thermal conductivity[J]. Ceram Int, 2019,45(10): 13203–13209.

[23] [23] LIAN W, LIU Y, WANG W J, et al. Preparation of environmentally friendly low-cost mullite porous ceramics and the effect of waste glass powder on structure and mechanical properties[J]. Int J Precis EngManuf Green Technol, 2022, 9(2): 577–585.

[24] [24] LI Z, LI X, TANG Y, et al. Sintering behaviour and characterisation of low-cost ceramic foams from coal gangue and waste quartz sand[J].Adv Appl Ceram, 2016, 115(7): 377–383.

[25] [25] LI X M, ZHENG M Y, LI R, et al. Preparation, microstructure, properties and foaming mechanism of a foamed ceramics with high closed porosity[J]. Ceram Int, 2019, 45(9): 11982–11988.

[26] [26] WANG Y Z, ZHOU M, LI L S, et al. Effect of ceramic matrix compositions on pore structure and properties of lightweight foamed ceramics[J]. Int J Appl Ceram Technol, 2023, 20(5):2942–2954.

[28] [28] LI S J, BAO C G, DONG W C, et al. Phase evolution and properties of porous cordierite ceramics prepared by cordierite precursor pastes based on supportless stereolithography[J]. J Alloys Compd, 2022, 922:166295.

[29] [29] SUN Y Y, ZHANG J D, LU S S, et al. Preparation of porous cordierite ceramic by gel–casting method[J]. Adv Appl Ceram, 2017, 116(7):362–367.

[30] [30] LI Z, LUO Z W, LI X Y, et al. Preparation and characterization of glass–ceramic foams with waste quartz sand and coal gangue in different proportions[J]. J Porous Mater, 2016, 23(1): 231–238.

[32] [32] EOM J H, KIM Y W, YUN S H, et al. Low-cost clay-based membranes for oily wastewater treatment[J]. J Ceram Soc Jpn, 2014,122(1429): 788–794.

[33] [33] HUI T, SUN H J, PENG T J. Preparation and characterization of cordierite-based ceramic foams with permeable property from asbestos tailings and coal fly ash[J]. J Alloys Compd, 2021, 885: 160967.

[34] [34] XIONG H, SHUI A Z, SHAN Q L, et al. Foaming mechanism of polishing porcelain stoneware tile residues via adding C, Al and Si powder[J]. J Eur Ceram Soc, 2022, 42(4): 1712–1721.

[35] [35] XIA F, CUI S C, PU X P. Performance study of foam ceramics prepared by direct foaming method using red mud and K-feldspar washed waste[J]. Ceram Int, 2022, 48(4): 5197–5203.

[36] [36] DONG Y R, JIANG C C, ZHANG L N, et al. Waste-bearing foamed ceramic from granite scrap and red mud[J]. Int J Appl Ceram Technol,2022,19(5): 2686–2700.

[37] [37] LIANG B, ZHANG M X, LI H, et al. Preparation of ceramic foams from ceramic tile polishing waste and fly ash without added foaming agent[J]. Ceram Int, 2021, 47(16): 23338–23349.

[39] [39] LI X, PAN M B, WU X P, et al. Effect of waste B4C addition on high closed-pore porosity foamed ceramics[J]. Ceram Int, 2022, 48(7):10311–10317.

[40] [40] LI X, YAN L, ZHANG Y, et al. Lightweight porous silica ceramics with ultra-low thermal conductivity and enhanced compressive strength[J]. Ceram Int, 2022, 48(7): 9788–9796.

[41] [41] WANG X D, XU H Y, ZHANG F J, et al. Preparation of porous cordierite ceramic with acid-leached coal gangue[J]. J Korean CeramSoc, 2020, 57(4): 447–453.

[42] [42] JIANG C C, HUANG S F, ZHANG X Z, et al. Tailoring pore structure and properties of waste-derived ceramic foams for lightweight construction[J]. RSC Adv, 2019, 9(62): 36308–36315.